无法使用python,urllib2刮取特定站点

时间:2016-11-27 03:53:09

标签: python-2.7 runtime-error urllib2

我正在使用urllib来提取网页,它似乎不适用于zomato的网站。它适用于我尝试过的其他几个网站。我已经尝试禁用我的防火墙,防病毒软件,并在try catch中包含urlopen行,因为我发现它here。我尝试使用互联网上似乎工作正常的代码,但我收到了错误消息,

  

v = self._sslobj.read(len或1024)   socket.error:[Errno 10060]连接尝试失败,因为连接方在一段时间后没有正确响应,或者由于连接主机无法响应而建立连接失败。

可能的原因是什么?

以下是它的简单代码。

import urllib2
from bs4 import BeautifulSoup

def extract_link(url):            
    page = urllib2.urlopen(url).read()                    
    return BeautifulSoup(page)

def main():
    link = 'https://www.zomato.com/kolkata'
    soup=extract_link(link)
    print soup.prettify()

if __name__== '__main__':
    main()

1 个答案:

答案 0 :(得分:0)

由于zomato.com是一个动态网站,并且在很大程度上依赖于Javascript或AJAX来填充其内容,因此您需要一个浏览器来获取该内容。最重要的是,zomato过滤掉它认为由机器人制作的请求。因此,出于这些原因,我建议你使用Selenium,因为它没有模拟浏览器会话,它是一个浏览器会话。为selenium编写基本上是编写一组操作并将它们提供给浏览器(通常是Firefox,但它可以与其他人一起工作)。您也可以使用PhantomJs作为替代方法,因为您正在使用python。

以下是设置selenium并复制上述代码的一些帮助。

  1. https://chromedriver.storage.googleapis.com/index.html?path=2.25/
  2. 下载chromedriver.exe
  3. 然后将此.exe文件解压缩到" Chrome驱动程序"文件夹中。
  4. 然后将包含该文件的文件夹剪切并粘贴到C盘中。
  5. 现在,做pip install selenium.
  6. 然后运行此代码

    import time
    from selenium import webdriver
    from selenium.webdriver.support.ui import WebDriverWait
    from selenium.webdriver.common.by import By
    from selenium.webdriver.support import expected_conditions as EC
    
    driver = webdriver.Chrome("C:\Chrome Driver\chromedriver")
    driver.get("https://www.zomato.com/kolkata")
    time.sleep(3)
    
    wait = WebDriverWait(driver, 30)
    
    body = wait.until(EC.presence_of_element_located((By.XPATH,"/html/body")))
    print(body.text)
    

    这是您将获得的输出:

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