Python Scrapy在通过凭据登录后不会在LinkedIn上抓取数据_Python_Web Scraping_Scrapy

Python Scrapy在通过凭据登录后不会在LinkedIn上抓取数据

python web-scraping scrapy

Python Scrapy在通过凭据登录后不会在LinkedIn上抓取数据,python,web-scraping,scrapy,Python,Web Scraping,Scrapy,我正在尝试从linkedin中添加我的组中抓取成员列表虽然当我运行代码时，没有得到任何响应/值。还有一大堆错误我已经验证了我的解析代码，看起来不错这是我的代码： import scrapy from scrapy.spider import BaseSpider from scrapy.selector import HtmlXPathSelector from scrapy.http import Request from scrapy.http import FormRequest

我正在尝试从linkedin中添加我的组中抓取成员列表

虽然当我运行代码时，没有得到任何响应/值。还有一大堆错误

我已经验证了我的解析代码，看起来不错

这是我的代码：

import scrapy
from scrapy.spider import BaseSpider
from scrapy.selector import HtmlXPathSelector
from scrapy.http import Request
from scrapy.http import FormRequest

class LoginSpider(BaseSpider):
    name = 'jiju'
    start_urls = ['https://www.linkedin.com/groups/58888/members']

    def parse(self, response):
        return [FormRequest.from_response(response,
                    formdata={'username': 'myusername', 'password': 'mypassword'},
                    callback=self.after_login)]

    def after_login(self, response):
        # check login succeed before going on
        if "authentication failed" in response.body:
            self.log("Login failed", level=log.ERROR)
            return
        # We've successfully authenticated, let's have some fun!
        else:
            return Request(url="http://www.example.com/tastypage/",
                   callback=self.parse_tastypage)

    def parse_tastypage(self, response):
        for j in response.xpath('//*[@id="ember2299"]'):
            yield {
              'detail':j.xpath('//*[@id="ember2299"]/span').extract(),
        }

这就是我得到的回应

C:\Users\Yash\tutorial\tutorial\spiders\jij.py:1: ScrapyDeprecationWarning: Module `scrapy.contrib.spiders` is deprecated, use `scrapy.spiders` instead
  from scrapy.contrib.spiders.init import InitSpider
C:\Users\Yash\tutorial\tutorial\spiders\jij.py:1: ScrapyDeprecationWarning: Module `scrapy.contrib.spiders.init` is deprecated, use `scrapy.spiders.init` instead
  from scrapy.contrib.spiders.init import InitSpider
C:\Users\Yash\tutorial\tutorial\spiders\jij.py:6: ScrapyDeprecationWarning: Module `scrapy.spider` is deprecated, use `scrapy.spiders` instead
  from scrapy.spider import BaseSpider
C:\Users\Yash\tutorial\tutorial\spiders\jiju.py:7: ScrapyDeprecationWarning: tutorial.spiders.jiju.LoginSpider inherits from deprecated class scrapy.spiders.BaseSpider, please inherit from scrapy.spiders.Spider. (warning only on first subclass, there may be others)
  class LoginSpider(BaseSpider):
2018-08-03 00:51:07 [scrapy.utils.log] INFO: Scrapy 1.4.0 started (bot: tutorial)
2018-08-03 00:51:07 [scrapy.utils.log] INFO: Overridden settings: {'BOT_NAME': 'tutorial', 'NEWSPIDER_MODULE': 'tutorial.spiders', 'SPIDER_MODULES': ['tutorial.spiders']}
2018-08-03 00:51:07 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
 'scrapy.extensions.telnet.TelnetConsole',
 'scrapy.extensions.logstats.LogStats']
2018-08-03 00:51:07 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
 'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
 'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
 'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
 'scrapy.downloadermiddlewares.retry.RetryMiddleware',
 'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
 'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
 'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
 'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
 'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
 'scrapy.downloadermiddlewares.stats.DownloaderStats']
2018-08-03 00:51:07 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
 'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
 'scrapy.spidermiddlewares.referer.RefererMiddleware',
 'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
 'scrapy.spidermiddlewares.depth.DepthMiddleware']
2018-08-03 00:51:07 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2018-08-03 00:51:07 [scrapy.core.engine] INFO: Spider opened
2018-08-03 00:51:07 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2018-08-03 00:51:07 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023
2018-08-03 00:51:07 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET https://www.linkedin.com/uas/login?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers> from <GET https://www.linkedin.com/groups/58888/members>
2018-08-03 00:51:08 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET https://www.linkedin.com/start/join?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers&trk=login_reg_redirect> from <GET https://www.linkedin.com/uas/login?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers>
2018-08-03 00:51:08 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.linkedin.com/start/join?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers&trk=login_reg_redirect> (referer: None)
2018-08-03 00:51:08 [scrapy.core.engine] DEBUG: Crawled (422) <POST https://www.linkedin.com/start/reg/api/createAccount> (referer: https://www.linkedin.com/start/join?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers&trk=login_reg_redirect)
2018-08-03 00:51:08 [scrapy.spidermiddlewares.httperror] INFO: Ignoring response <422 https://www.linkedin.com/start/reg/api/createAccount>: HTTP status code is not handled or not allowed
2018-08-03 00:51:08 [scrapy.core.engine] INFO: Closing spider (finished)
2018-08-03 00:51:08 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 2810,
 'downloader/request_count': 4,
 'downloader/request_method_count/GET': 3,
 'downloader/request_method_count/POST': 1,
 'downloader/response_bytes': 20952,
 'downloader/response_count': 4,
 'downloader/response_status_count/200': 1,
 'downloader/response_status_count/302': 2,
 'downloader/response_status_count/422': 1,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2018, 8, 2, 19, 21, 8, 574170),
 'httperror/response_ignored_count': 1,
 'httperror/response_ignored_status_count/422': 1,
 'log_count/DEBUG': 5,
 'log_count/INFO': 8,
 'request_depth_max': 1,
 'response_received_count': 2,
 'scheduler/dequeued': 4,
 'scheduler/dequeued/memory': 4,
 'scheduler/enqueued': 4,
 'scheduler/enqueued/memory': 4,
 'start_time': datetime.datetime(2018, 8, 2, 19, 21, 7, 742810)}
2018-08-03 00:51:08 [scrapy.core.engine] INFO: Spider closed (finished)

C:\Users\Yash\tutorial\tutorial\spider\jij.py:1:scrapydeproduction警告：模块'scrapy.contrib.spider'已被弃用，请改用'scrapy.spider'
从scrapy.contrib.spider.init导入InitSpider
C:\Users\Yash\tutorial\tutorial\spider\jij.py:1:scrapydeproductionwarning:Module`scrapy.contrib.spider.init`已被弃用，请改用`scrapy.spider.init`
从scrapy.contrib.spider.init导入InitSpider
C:\Users\Yash\tutorial\tutorial\spider\jij.py:6:scrapydeproduction警告：模块'scrapy.spider'已被弃用，请改用'scrapy.spider'
从scrapy.spider导入BaseSpider
C:\Users\Yash\tutorial\tutorial\Spider\jiju.py:7:scrapydeproductionwarning:tutorial.Spider.jiju.LoginSpider继承自不推荐的类scrapy.Spider.BaseSpider，请继承自scrapy.Spider.Spider。（警告仅限于第一个子类，可能还有其他子类）
类LoginSpider（BaseSpider）：
2018-08-03 00:51:07[scrapy.utils.log]信息：scrapy 1.4.0已启动（机器人程序：教程）
2018-08-03 00:51:07[scrapy.utils.log]信息：覆盖的设置：{'BOT_NAME'：'tutorial'，'NEWSPIDER_MODULE'：'tutorial.SPIDER'，'SPIDER_MODULES'：['tutorial.SPIDER']
2018-08-03 00:51:07[scrapy.middleware]信息：启用的扩展：
['scrapy.extensions.corestats.corestats'，
'scrapy.extensions.telnet.TelnetConsole'，
'scrapy.extensions.logstats.logstats']
2018-08-03 00:51:07[剪贴簿中间件]信息：启用的下载程序中间件：
['scrapy.downloaderMiddleware.httpauth.HttpAuthMiddleware'，
'scrapy.downloadermiddleware.downloadtimeout.DownloadTimeoutMiddleware'，
'scrapy.downloaderMiddleware.defaultheaders.DefaultHeadersMiddleware'，
'scrapy.DownloaderMiddleware.useragent.UserAgentMiddleware'，
'scrapy.DownloaderMiddleware.retry.RetryMiddleware'，
'scrapy.DownloaderMiddleware.redirect.MetaRefreshMiddleware'，
'scrapy.DownloaderMiddleware.httpcompression.HttpCompressionMiddleware'，
'scrapy.DownloaderMiddleware.redirect.RedirectMiddleware'，
“scrapy.DownloaderMiddleware.cookies.CookiesMiddleware”，
'scrapy.downloadermiddleware.httpproxy.HttpProxyMiddleware'，
'scrapy.downloadermiddleware.stats.DownloaderStats']
2018-08-03 00:51:07[剪贴簿中间件]信息：启用的蜘蛛中间件：
['scrapy.spidermiddleware.httperror.httperror中间件'，
'刮皮.SpiderMiddleware.场外.场外Iddleware'，
“scrapy.Spidermiddleware.referer.RefererMiddleware”，
'scrapy.spiderMiddleware.urllength.UrlLengthMiddleware'，
'scrapy.spidermiddleware.depth.DepthMiddleware']
2018-08-03 00:51:07[碎片中间件]信息：启用的项目管道：
[]
2018-08-03 00:51:07[刮屑.堆芯.发动机]信息：十字轴已打开
2018-08-03 00:51:07[scrapy.extensions.logstats]信息：爬网0页（0页/分钟），爬网0项（0项/分钟）
2018-08-03 00:51:07[scrapy.extensions.telnet]调试：telnet控制台监听127.0.0.1:6023
2018-08-03 00:51:07[scrapy.downloadermiddleware.redirect]调试：重定向（302）到
2018-08-03 00:51:08[scrapy.downloadermiddleware.redirect]调试：重定向（302）到
2018-08-03 00:51:08[刮屑核心引擎]调试：爬网（200）（参考：无）
2018-08-03 00:51:08[刮屑核心引擎]调试：爬网（422）（参考：https://www.linkedin.com/start/join?session_redirect=https%3A%2F%2Fwww.linkedin.com%2Fgroups%2F58888%2Fmembers&trk=login_reg_redirect)
2018-08-03 00:51:08[scrapy.spidermiddleware.httperror]信息：忽略响应：HTTP状态代码未处理或不允许
2018-08-03 00:51:08[刮屑芯发动机]信息：关闭卡盘（已完成）
2018-08-03 00:51:08[scrapy.statscollectors]信息：倾销scrapy统计数据：
{'downloader/request_bytes'：2810，
“下载程序/请求计数”：4，
“下载程序/请求方法\计数/获取”：3，
“下载程序/请求方法\计数/发布”：1，
“downloader/response_字节”：20952，
“下载程序/响应计数”：4，
“下载程序/响应状态\计数/200”：1，
“下载程序/响应状态\计数/302”：2，
“下载程序/响应状态\计数/422”：1，
“完成原因”：“完成”，
“完成时间”：datetime.datetime（2018,8,2,19,21,8574170），
“httperror/response\u忽略\u计数”：1，
“httperror/response\u ignored\u status\u count/422”：1，
“日志计数/调试”：5，
“日志计数/信息”：8，
“请求深度最大值”：1，
“响应\u已收到\u计数”：2，
“调度程序/出列”：4，
“调度程序/出列/内存”：4，
“调度程序/排队”：4，
“调度程序/排队/内存”：4，
“开始时间”：datetime.datetime（2018,8,2,19,21,7742810）}
2018-08-03 00:51:08[刮屑堆芯发动机]信息：十字轴关闭（完成）

问题：

Scrapy

尝试访问

start\u URL

，您的情况是：

https://www.linkedin.com/groups/58888/members

由于此请求已发出，而您尚未登录，

LinkedIn

将您重定向到<代码>https://www.linkedin.com/start/join，这是一个用于创建新用户的页面

您的

parse

函数尝试在此页面上查找表单，并使用您的凭据设置输入字段

username

和

password

。由于注册表单包含

password

字段，

Scrapy

试图将表单和您的数据发布到

https://www.linkedin.com/start/reg/api/createAccount

，失败了，这就是LinkedIn返回

错误的原因

解决方案：在向LinkedIn发出任何请求之前，请确保您已登录。为此，您的

start\u URL

应该包含登录页面。由于

LinkedIn

上的登录表单未使用

username

和

password

字段，因此必须对其进行更改。您可以转到登录页面，在中

class LoginSpider(BaseSpider):
    name = 'jiju'
    start_urls = ['https://www.linkedin.com/uas/login']

    def parse(self, response):
        return FormRequest.from_response(response,
                    formdata={'session_key': 'your_login', 'session_password': 'your_pass'},
                    callback=self.after_login)

    def after_login(self, response):
        return Request(url="https://www.linkedin.com/groups/58888/members", callback=self.parse_members)