Stack Overflow reputation checker

#!/usr/bin/env python

import sys
import urllib2
from HTMLParser import HTMLParser
from htmlentitydefs import name2codepoint

user_id = 1293167                                  # tuss laszlo
#user_id = 751482                                    # pshegger
so_base_url = "http://stackoverflow.com/users/"

class SOParser(HTMLParser):
    def __init__(self):
        HTMLParser.__init__(self)
        self.span_started = False
        self.repu_started = False
        self.username_started = False
        self.username = ""
        self.repu = 0

    def handle_starttag(self, tag, attrs):
        if tag == "span":
            self.span_started = True

        if tag == "a" and self.span_started:
            if len(attrs) > 0 and attrs[0][0] == "href" and attrs[0][1].endswith("?tab=reputation"):
                self.repu_started = True

        if tag == "h1":
            if len(attrs) > 0 and attrs[0][0] == "id" and attrs[0][1] == "user-displayname":
                self.username_started = True

    def handle_endtag(self, tag):
        if tag == "span":
            self.span_started = False

        if tag == "a":
            self.repu_started = False

        if tag == "h1":
            self.username_started = False

    def handle_data(self, data):
        if self.username_started:
            self.username += data

        if self.repu_started:
            self.repu = int(data)

    def handle_charref(self, name):
        if name.startswith('x'):
            c = unichr(int(name[1:], 16))
        else:
            c = unichr(int(name))
        if self.username_started:
            self.username += c

def main():
    global user_id

    if len(sys.argv) > 1:
        if sys.argv[1] == "-h":
            print "%s [userid=%d]" % (sys.argv[0], user_id)
            return
        user_id = int(sys.argv[1])

    so_user_url = so_base_url + str(user_id)
    parser = SOParser()
    parser.feed(urllib2.urlopen(so_user_url).read())
    print "Username:", parser.username
    print "Reputation:", parser.repu

if __name__ == "__main__":
    main()