用 lxml.html 替换元素
我对 lxml 和 HTML 解析器整体来说还很陌生。 我想知道是否有一种方法可以用另一个元素替换树中的一个元素...
例如我有：
body = """<code> def function(arg): print arg </code> Blah blah blah <code> int main() { return 0; } </code> """
doc = lxml.html.fromstring(body)
codeblocks = doc.cssselect('code')
for block in codeblocks:
lexer = guess_lexer(block.text_content())
hilited = highlight(block.text_content(), lexer, HtmlFormatter())
doc.replace(block, hilited)
我想按照这些思路做一些事情，但这会导致“TypeError”，因为“hilited”不是一个 lxml.etree._Element。
这可行吗？
问候，
I'm fairly new to lxml and HTML Parsers as a whole.
I was wondering if there is a way to replace an element within a tree with another element...
For example I have:
body = """<code> def function(arg): print arg </code> Blah blah blah <code> int main() { return 0; } </code> """
doc = lxml.html.fromstring(body)
codeblocks = doc.cssselect('code')
for block in codeblocks:
lexer = guess_lexer(block.text_content())
hilited = highlight(block.text_content(), lexer, HtmlFormatter())
doc.replace(block, hilited)
I want to do something along those lines, but this results in a "TypeError" because "hilited" isn't an lxml.etree._Element.
Is this feasible?
Regards,
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关于lxml，
在
doc.replace(block, hilited)中，block是lxml的Element对象，hilited是字符串，你不能替换它。
有两种方法可以做到这一点
或
Regarding lxml,
In
doc.replace(block, hilited)block is the lxml's Element object, hilited is string, you cannot replace that.
There is 2 ways to do that
or
如果您不熟悉 python HTML 解析器，您可以尝试 BeautifulSoup，一个 html/ xml 解析器，它可以让您轻松修改解析树< /a>.
If you're new to python HTML parsers, you might try out BeautifulSoup, a html/xml parser, which lets you modify the parse tree easily.