# coding: utf-8
from grab.spider import Spider, Task
from grab import Grab

class ParserAvito:
    myGrab = Grab()
    myUrl = None
    myXPath = None

    def getText(self, url, xpath):
        self.myUrl = url
        self.myXPath = xpath
        self.myGrab.go(self.myUrl)
        return self.myGrab.doc.select(xpath).text()

site = "http://www.avito.ru/"
site_xpath = ".//*[@id='main']/div[2]/div[1]/div[1]/h2"
par = ParserAvito()
print(par.getText('http://vk.com/',".//*[@id='index']/div[1]/ul/li/span"))