使用BeautifulSoup修改HTML [英] Using BeautifulSoup to modify HTML

问题描述

我想使用Beautifulsoup修改HTML的整个div.我试图修改HTML，但是控制台输出进行了修改，但是实际的.html文档本身并未被修改.没有创建新的HTML.

I want to use Beautifulsoup to modify a whole div of a HTML. I was trying to modify the HTML, however the console output has the modifications, but the actual .html document itself is not modified. No new HTML was created.

有人可以帮助我吗?

from bs4 import BeautifulSoup,Tag
import re
import urllib2
import os.path
base=os.path.dirname(os.path.abspath(__file__))

html=open(os.path.join(base,'example.html'))
soup=BeautifulSoup(html,'html.parser')


for i in  soup.find('div',{"id":None}).findChildren():
    l=str(i);
    print l
    print l.replace(l,'##')

推荐答案

两件事:

1. 您需要添加一些代码，以将BeautifulSoup的输出写回到文件中.
2. 您应该使用 replace_with() 更改为HTML.通过转换为字符串，您只是在修改文本副本.

这可以如下进行:

from bs4 import BeautifulSoup
import os

base = os.path.dirname(os.path.abspath(__file__))
html = open(os.path.join(base, 'example.html'))
soup = BeautifulSoup(html, 'html.parser')

for i in soup.find('div', {"id":None}).findChildren():
    i.replace_with('##')

with open("example_modified.html", "wb") as f_output:
    f_output.write(soup.prettify("utf-8"))  

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