python lxml添加保留所有父树的子元素

Question

我有这样的东西：

<source>Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></source>

我想添加一个标签以保持此结果：

<source><en>Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></en></source>

但是，追加，插入或子元素都不会保留父级的结构。

from lxml import etree
xml = et.fromstring('<source>Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></source>')
root = xml.getroot()
element = et.Element('en')
root.insert(0, element)
print(et.tostring(root))

但是它会插入一个空标签。我不知道如何保持父级的整个结构这样：

<source><en />Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></source>

Answer 1

您可以重命名原始的根元素，然后将其附加到新的根元素。

from lxml import etree

old_root = etree.fromstring('<source>Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></source>')

old_root.tag = "en"
new_root = etree.Element("source")
new_root.append(old_root)

print(etree.tostring(new_root))

结果：

<source><en>Some text <g>that is like this.<g> Needs </g></g>. <g> I want to keep this structure</g></en></source>

Answer 2

这是我的解决方案。希望这会有所帮助。

干杯！