python爬虫原码优化后运行不了

最近看了理想之城连续刷，挺狗血的，准备想看品味下文字版，去网上找了一个网站，试着去抓取数据，原码如下，一切都还顺利。

import requests
from fake_useragent import UserAgent
from lxml import etree

def get_html(x):
    ua = {"User-Agent":UserAgent().random}
    r = requests.get(url=x,headers=ua).text
    
    return r

def get_urls(x):
    html = etree.HTML(x)
    data = html.xpath('//ul/li//@href')[1:-1]
    return data

def get_content(x):
    html = etree.HTML(x)
    data = html.xpath('//p/text()')
    return data
    
def main():
    url = 'http://m.jiewuxian.com/10/10910/'
    s = url.split('/1')[0]
    urls = get_urls(get_html(url))
    #print(urls)
    for i in urls:
        sr = s+i
        text = get_content(get_html(sr))
        break
    
if __name__ == '__main__':
    main()

#但是我发现get_urls与get_content函数功能相同，
#于是做了如下优化。
#但代码就运行不了，
#请各位同仁看下问题出哪里了。
#不胜感激！！


import requests
from fake_useragent import UserAgent
from lxml import etree

def get_html(x):
    ua = {"User-Agent":UserAgent().random}
    r = requests.get(url=x,headers=ua).text
    
    return r

def get_urls(x,y):
    html = etree.HTML(x)
    data = html.xpath(y)
    return data
    
def main():
    url = 'http://m.jiewuxian.com/10/10910/'
    s = url.split('/1')[0]
    url_xpath = '//ul/li/@href'
    text_xpath = '//p/text()'
    urls = get_urls(get_html(url),url_xpath)[1:-1]
    #print(urls)
    for i in urls:
        sr = s+i
        text = get_urls(get_html(sr),text_xpath)
        break
if __name__ == '__main__':
    main()

报错是什么