每天一爬虫bug 02

问题：

AttributeError: 'NoneType' object has no attribute 'text'

一开始的源代码：

import requests
from bs4 import BeautifulSoup
import lxml
#对首页页面进行数据采集
url = "https://www.shicimingju.com/book/sanguoyanyi.html"
header = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36'
}
page_text = requests.get(url=url,headers=header).text

#在首页解析出章节的标题和详细页源码数据加载到该对象中
#1.实例BeautifulSoup对象，需要将页面数据加载到该对象
soup = BeautifulSoup(page_text,'lxml')
#解析章节标题和详细页url
li_list = soup.select('.book-mulu > ul >li')
fp = open('./sanguo.txt',"w",encoding="utf-8")
for li in li_list:
    title = li.a.string
    datail_url = "https://www.shicimingju.com/book/" + li.a['href']
    #对详情也发请求
    datail_text = requests.get(url=datail_url,headers=header).text
    detail_soup = BeautifulSoup(datail_text,'lxml')
    div_tag = detail_soup.find('div',class_="chapter_content")
    content = div_tag.text
    fp.write(title+':'+content+'n')
    print(title,"爬取成功！！")

修改后：

import requests
from bs4 import BeautifulSoup
import lxml
#对首页页面进行数据采集
if __name__ == "__main__":
    url = "https://www.shicimingju.com/book/sanguoyanyi.html"
    header = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36'
    }
    page_text = requests.get(url=url,headers=header).content.decode("utf-8")

    #在首页解析出章节的标题和详细页源码数据加载到该对象中
    #1.实例BeautifulSoup对象，需要将页面数据加载到该对象
    soup = BeautifulSoup(page_text,'lxml')
    #解析章节标题和详细页url
    li_list = soup.select('.book-mulu > ul >li')
    fp = open('./sanguo.txt',"w",encoding="utf-8")
    for li in li_list:
        title = li.a.string
        datail_url = "https://www.shicimingju.com" + li.a['href']
        #对详情也发请求
        datail_text = requests.get(url=datail_url,headers=header).content.decode("utf-8")
        detail_soup = BeautifulSoup(datail_text,'lxml')
        div_tag = detail_soup.find('div',class_="chapter_content")
        content = div_tag.text
        fp.write(title+':'+content+'n')
        print(title,"爬取成功！！")

改动说明：

1.该情况是因为我的user-agent访问过于频繁，需要更改其他的user-agent

2.中文乱码问题(requests请求后面)加上.content.decode("utf-8")

最终结果：

每天一爬虫bug 02

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