python - 在原始 HTML 文件上写回 Beautifulsoup 时出错

Question

我的原始 HTML 文件的 BeautifulSoup 副本的编码可能有问题吗？

我被告知我无法写入文件，因为我必须写入一个 str 而不是 none。

请看下面的代码和TypeError:

#Manipulating HTML and saving changed with BeautifulSoup

#Importing libraries
from bs4 import BeautifulSoup

#Opening the local HTML file
site_html = open(r"C:\Users\rbaden\desktop\KPI_Site\index.html")

#Creating Soup  from source HTML file
soup =BeautifulSoup(site_html)
#print(soup.prettify())

#Locate and view specified class in HTML file
test = soup.find_all(class_='test-message-one')
print(test)

#Test place holder for a python variable that should replace the specified class
var = ('Testing...456')

#Replace the class in soup redition of HTML
for i in soup.find_all(class_='test-message-one'):
    i.string = var

#overwriting the source HTML file on local drive
with open(r"C:\Users\rbaden\desktop\KPI_Site\index.html") as f:
    f.write(soup.content)

Answer 1

首先，您需要以w 模式打开文件。

并且，您需要编写 str(soup) 或 soup.prettify():

with open(r"C:\Users\rbaden\desktop\KPI_Site\index.html", "w") as f:
    f.write(soup.prettify())