bsObj = BeautifulSoup(html.read())

 UserWarning: No parser was explicitly specified, so I'm using the best available HTML parser for this system ("lxml"). This usually isn't a problem, but if you run this code on another system, or in a different virtual environment, it may use a different parser and behave differently.

bsObj = BeautifulSoup(html.read(),"html.parser")

 1 #!/usr/bin/env python
 2 # encoding: utf-8
 3 """
 4 @author: 侠之大者kamil
 5 @file: beautifulsoup.py
 6 @time: 2016/4/19 16:36
 7 """
 8 from bs4 import BeautifulSoup
 9 from urllib.request import urlopen
10 html = urlopen('http://www.cnblogs.com/kamil/')
11 print(type(html))
12 bsObj = BeautifulSoup(html.read(),"html.parser") #html.read() 获取网页内容，并且传输到BeautifulSoup 对象。
13 print(type(bsObj))
14 print(bsObj.h1)

ssh://kamil@xzdz.hk:22/usr/bin/python3 -u /home/kamil/windows_python3/python3/Day11/day12/beautifulsoup.py
<class 'http.client.HTTPResponse'>
<class 'bs4.BeautifulSoup'>
<h1><a class="headermaintitle" href="http://www.cnblogs.com/kamil/" id="Header1_HeaderTitle">侠之大者kamil</a></h1>Process finished with exit code 0