Water Lin wrote:
h0uk <vardan.pogos...@gmail.com> writes:
On 8 янв, 08:44, Water Lin <water...@ymail.invalid> wrote:
I am a new guy to use Python, but I want to parse a html page now. I
tried to use HTMLParse. Here is my sample code:
----------------------
from HTMLParser import HTMLParser
from urllib2 import urlopen
class MyParser(HTMLParser):
title = ""
is_title = ""
def __init__(self, url):
HTMLParser.__init__(self)
req = urlopen(url)
self.feed(req.read())
def handle_starttag(self, tag, attrs):
if tag == 'div' and attrs[0][1] == 'articleTitle':
print "Found link => %s" % attrs[0][1]
self.is_title = 1
def handle_data(self, data):
if self.is_title:
print "here"
self.title = data
print self.title
self.is_title = 0
-----------------------
For the tag
-------
<div class="articleTitle">open article title</div>
-------
I use my code to parse it. I can locate the div tag but I don't know how
to get the text for the tag which is "open article title" in my example.
How can I get the html content? What's wrong in my handle_data function?
Thanks
Water Lin
--
Water Lin's notes and pencils:http://en.waterlin.org
Email: water...@ymail.com
I want to say your code works well
But in handle_data I can't print self.title. I don't why I can't set the
self.title in handle_data.
Thanks
Water Lin
I don't know HTMLParser, but I see a possible confusion point in your
class definition.
You have both class-attributes and instance-attributes of the same names
(title and is_title). So if you have more than one instance of MyParser,
then they won't see each other's changes. Normally, I'd move the
initialization of such attributes into the __init__() method, so the
behavior is clear.
When an instance-attribute has the same name as a class-attribute, the
instance-attribute takes precedence, and "hides" the class-attribute,
for further processing in that same instance. So effectively, the
class-attribute acts as a default value.
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