Скрапер weblancer.net на python+lxml

Колега попросив помогти знайти помилку в скрипті. Парсалось за допомогою BS, а я його ненавиджу. Переписав на lxml

#!/usr/bin/env python

#-*- coding: utf-8 -*-
 

import re
from lxml import etree
from lxml import html as lxml_html
import urllib2
from io import StringIO

_base_url = "https://www.weblancer.net/projects/?page={}"
def main():
    parser = lxml_html.HTMLParser(encoding='windows-1251')
    page =urllib2.urlopen(_base_url.format(1))
    data=page.read()
    tree = etree.parse(StringIO(data.decode("windows-1251", errors="ignore")), parser)

    last_page_url = tree.xpath("//ul[@class='pagination']/li[last()]/a/@href")[0]
    last_page = re.compile(r"(\d+)").search(last_page_url).group(1)

    for i in range(0, int(last_page)+1):
        page =urllib2.urlopen(_base_url.format(i))
        data=page.read()
        tree = etree.parse(StringIO(data.decode("windows-1251", errors="ignore")), parser)
        search_results = tree.xpath("//div[@class='container-fluid cols_table show_visited']/div[@class='row']")
        for sr in search_results:
            title =  sr.xpath("./div[@class='col-sm-7']/a[@class='title']/text()")[0].lstrip().rstrip()
            categories =  sr.xpath("./div[@class='col-sm-7']/div[@class='text-muted']/a[@class='text-muted']/text()")[0].lstrip().rstrip()
            try:
                price = sr.xpath("./div[@class='col-sm-2 amount title']/text()")[0].lstrip().rstrip()
            except IndexError:
                price = '' 

            try:
                application = sr.xpath("./div[@class='col-sm-3 text-right text-nowrap hidden-xs']/text()")[0].lstrip().rstrip()
            except IndexError:
                application = ''
            print title, categories, application, price

if __name__ == "__main__":
    main()