在BeautifulSoup编辑后覆盖源HTML文件时出错

Question

这是我的代码：

#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")
    f.write(soup.content)

这是错误：

在beautifulsoup进行更改之后，如何正确地用新文件覆盖整个源文件？

Answer 1

您为此使用了错误的语法。 正确的是

with open(file, mode) as variable:
   # do something with variable

在你的情况下

with open(r"C:\Users\rbaden\desktop\KPI_Site\index.html","w") as f:
    #  I forgot 'mode' argument to open                ^^^^^^^^
    #f.write(...)

有关更多信息，请参见此StackOverflow答案 。

完整语法：

with_stmt ::=  "with" with_item ("," with_item)* ":" suite
with_item ::=  expression ["as" target]

请参阅文档 。

编辑 ：您也错误地打开了文件。 查看修改。