Home > Backend Development > Python Tutorial > Python实现抓取百度搜索结果页的网站标题信息

Python实现抓取百度搜索结果页的网站标题信息

WBOY
Release: 2016-06-10 15:18:12
Original
2580 people have browsed it

比如,你想采集标题中包含“58同城”的SERP结果,并过滤包含有“北京”或“厦门”等结果数据。

该Python脚本主要是实现以上功能。

其中,使用BeautifulSoup来解析HTML,可以参考我的另外一篇文章:Windows8下安装BeautifulSoup

代码如下:

复制代码 代码如下:

__author__ = '曾是土木人'
# -*- coding: utf-8 -*-
#采集SERP搜索结果标题
import urllib2
from bs4 import BeautifulSoup
import time
#写文件
def WriteFile(fileName,content):
    try:
        fp = file(fileName,"a+")
        fp.write(content + "\r")
        fp.close()
    except:
        pass

#获取Html源码
def GetHtml(url):
    try:
        req = urllib2.Request(url)
        response= urllib2.urlopen(req,None,3)#设置超时时间
        data    = response.read().decode('utf-8','ignore')
    except:pass
    return data

#提取搜索结果SERP的标题
def FetchTitle(html):
    try:
        soup = BeautifulSoup(''.join(html))
        for i in soup.findAll("h3"):
            title = i.text.encode("utf-8")      
       if any(str_ in title for str_ in ("北京","厦门")):
          continue
            else:
                print title
            WriteFile("Result.txt",title)
    except:
        pass

keyword = "58同城"
if __name__ == "__main__":
    global keyword
    start = time.time()
    for i in range(0,8):
        url = "http://www.baidu.com/s?wd=intitle:"+keyword+"&rn=100&pn="+str(i*100)
        html = GetHtml(url)
        FetchTitle(html)
        time.sleep(1)
    c = time.time() - start
    print('程序运行耗时:%0.2f 秒'%(c))

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template