python练习程序（得到HTML文件的title）

from HTMLParser import HTMLParser
import sys

class TitleParser(HTMLParser):
def __init__(self):
self.title = ''
self.readingtitle=0
HTMLParser.__init__(self)

def handle_starttag(self, tag, attrs):
if tag == 'title':
self.readingtitle=1

def handle_data(self, data):
if self.readingtitle:
self.title +=data

def handle_endtag(self, tag):
if tag == 'title':
self.readingtitle=0

def gettitle(self):
return self.title

fd=open(sys.argv[1])
tp=TitleParser()
tp.feed(fd.read())
print "Title is: ", tp.gettitle()