Python Selenium百度搜索翻页查找文字

#!/usr/bin/python
# -*- coding: utf- -*-
from selenium import webdriver
import time

# browser = webdriver.Firefox()
# browser = webdriver.Ie()
browser = webdriver.Chrome()
browser.get("http://www.baidu.com")
browser.find_element_by_id("kw").send_keys(u"selenium")
browser.find_element_by_id("su").click()

for i in range():
    time.sleep()
    browser.find_element_by_partial_link_text("下一页").click()
    body = browser.find_element_by_tag_name("body");
    if "github" in body.text.encode("utf-8"):
        print("---Found it---")
    else:
        print("---Not Found!---")
    print("page:" + str(i))

time.sleep()
browser.quit()