将现有根插入现有 Python ElementTree

Question

我正在尝试 link 两个现有的 Python ElementTree 对象。

import xml.etree.ElementTree as ET

root = ET.Element('Hello')
root2 = ET.Element('World')
node = ET.SubElement(root2, 'country')
node.text = 'Belgium'

打印时

print(ET.tostring(root))
print(ET.tostring(root2))

我明白了

b'<Hello />'
b'<World><country>Belgium</country></World>'

如何将 root2 添加到 root 以获得结果？ `

print(ET.tostring(root))

b'<Hello><World><country>Belgium</country></World></Hello>'

Answer 1

怎么样

导入 xml.etree.ElementTree 作为 ET

hello = ET.Element('Hello')
world = ET.Element('World')
hello.insert(0,world)
country = ET.SubElement(world,'Country')
country.text = 'Belgium'
print(ET.tostring(hello))

输出

b'<Hello><World><Country>Belgium</Country></World></Hello>'

Answer 2

看来，我可以使用与列表相同的语法

root.append(root2)

print(ET.tostring(root))

b'<Hello><World><country>Belgium</country></World></Hello>'

将现有根插入现有 Python ElementTree

Inserting an existing root into an existing Python ElementTree

python

xml

elementtree