如何用 html 文件中的空格替换所有` `？

Question

我想用 html 文件文本部分中的空格字符替换所有   字符（或任何变体，如    ）。 （即text_content() 在lxml 中返回的那些。不应更改属性等任何其他内容。）

这样的事情不能保证只改变文本部分。

Replace `\n` in html page with space in python LXML

在 lxml 中这样做的正确方法是什么？

Answer 1

您可以使用正则表达式的替换来替换子字符串

import re
text = '''
I'd like to replace all   characters (or any variants like    ) by a 
space character in the text part of an html file. (i.e., the 
ones returned by text_content() in lxml. 
Things in anything else like attributes should not be changed.)
'''
out = re.sub(r"&\S*;", r"", text)
print(out)

>>I'd like to replace all  characters (or any variants like  ) by a 
space character in the text part of an html file. (i.e., the ones returned by text_content() in lxml. 
Things in anything else like attributes should not be changed.)

Answer 2

您可以使用open() 函数读取文件并将它们附加到变量中。然后，您可以替换某些并将其写回文件。这是一个例子：

#My File
myFile = 'myFile.html'

#Read the file and gather the contents
with open(myFile, "r") as f:
    contents = f.read()
    print(contents)

#What we want to replace unwanted contents with
newContents = contents.replace(' ', ' ')

#Now write the file with the contents you want
with open(myFile, 'w') as f:
    f.write(newContents)
    print(newContents)