这篇文章主要介绍了python实现提取百度搜索结果的方法,涉及Python网页及字符串操作的相关技巧,需要的朋友可以参考下
本文实例讲述了python实现提取百度搜索结果的方法。分享给大家供大家参考。具体实现方法如下:
- # coding=utf8
- import urllib2
- import string
- import urllib
- import re
- import random
- #设置多个user_agents,防止百度限制IP
- user_agents = ['Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20130406 Firefox/23.0', /
- 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0', /
- 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533+ /
- (KHTML, like Gecko) Element Browser 5.0', /
- 'IBM WebExplorer /v0.94', 'Galaxy/1.0 [en] (Mac OS X 10.5.6; U; en)', /
- 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)', /
- 'Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14', /
- 'Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) /
- Version/6.0 Mobile/10A5355d Safari/8536.25', /
- 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) /
- Chrome/28.0.1468.0 Safari/537.36', /
- 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; TheWorld)']
- def baidu_search(keyword,pn):
- p= {'wd': keyword}
- res=urllib2.urlopen(("http://www.baidu.com/s?"+urllib.urlencode(p)+"&pn={0}&cl=3&rn=100").format(pn))
- html=res.read()
- return html
- def getList(regex,text):
- arr = []
- res = re.findall(regex, text)
- if res:
- for r in res:
- arr.append(r)
- return arr
- def getMatch(regex,text):
- res = re.findall(regex, text)
- if res:
- return res[0]
- return ""
- def clearTag(text):
- p = re.compile(u'<[^>]+>')
- retval = p.sub("",text)
- return retval
- def geturl(keyword):
- for page in range(10):
- pn=page*100+1
- html = baidu_search(keyword,pn)
- content = unicode(html, 'utf-8','ignore')
- arrList = getList(u"<table.*?class=/"result/".*?>.*?<//a>", content)
- for item in arrList:
- regex = u"<h3.*?class=/"t/".*?><a.*?href=/"(.*?)/".*?>(.*?)<//a>"
- link = getMatch(regex,item)
- url = link[0]
- #获取标题
- #title = clearTag(link[1]).encode('utf8')
- try:
- domain=urllib2.Request(url)
- r=random.randint(0,11)
- domain.add_header('User-agent', user_agents[r])
- domain.add_header('connection','keep-alive')
- response=urllib2.urlopen(domain)
- uri=response.geturl()
- print uri
- except:
- continue
- if __name__=='__main__':
- geturl('python')
希望本文所述对大家的Python程序设计有所帮助。
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