运行无反应，也不报错，啥毛病??

import xlwt
import requests
from lxml import etree
import time

all_info_list=[]
def get_info(url):
    html=requests.get(url)
    selector=etree.HTML(html.text)
    infos=selector.xpath('//ul[@class="all_img_list cf"]/li')
    for info in infos:
        title=info.xpath('div[2]/h4/a/text()')[0]
        author=info.xpath('div[2]/p[1]/a[1]/text()')[0]
        style_1=info.xpath('div[2]/p[1]/a[2]/text()')[0]
        style_2=info.xpath('div[2]/p[1]/a[3]/text()')[0]
        style=style_1+'.'+style_2
        complete=info.xpath('div[2]/p[1]/span[1]/text()')
        introduce=info.xpath('div[2]/p[2]')[0].strip()
        word=info.xpath('div[2]/p[3]/span/span[1]/text()')[0].strip('万字')
        info_list=['title','author','style','complete','imtroduce'