Python网络爬虫

下面我们创建一个真正的爬虫例子

爬取我的博客园个人主页首页的推荐文章列表和地址

scrape_home_articles.py

from urllib.request import urlopen
from bs4 import BeautifulSoup
import re

html = urlopen("http://www.cnblogs.com/davidgu")
bsObj = BeautifulSoup(html, "html.parser")
for link in bsObj.find("div", {"id":"main_container"}).findAll("a", href=re.compile("^http://www.cnblogs.com/davidgu/p")):
    if 'href' in link.attrs and not('class' in link.attrs):
        print(link.string)
        print(link.attrs['href'])
        print("--------------------------------------------------------------")

运行结果：
[置顶]解决adb server端口被占用的问题
http://www.cnblogs.com/davidgu/p/4515236.html
--------------------------------------------------------------
[置顶]解决Eclipse下不自动拷贝apk到模拟器问题( The connection to adb is down, and a sever
http://www.cnblogs.com/davidgu/p/4390661.html
--------------------------------------------------------------
常用的正则表达式一览
http://www.cnblogs.com/davidgu/p/4831357.html
--------------------------------------------------------------
C++ 11 - STL - 函数对象(Function Object) (上)
http://www.cnblogs.com/davidgu/p/4829097.html
--------------------------------------------------------------

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