python beautifulsoup獲取特定html源碼

beautifulsoup 獲取特定html源碼（無需登錄頁面）

import re
from bs4 import BeautifulSoup
import urllib2

url = 'http://www.cnblogs.com/vickey-wu/'
# connect to a URL
web = urllib2.urlopen(url)
# read html code
html = web.read()
# print html
soup = BeautifulSoup(html,'html.parser')
prety = soup.prettify()
# print prety
pointed_div = soup.findAll(name="div", attrs={"class":re.compile("forFlow")})　　　　# 篩選標簽為div且屬性class為forFlow的源碼
print pointed_div