使用Python解析XML :如何将兄弟标记转换为子标记？

import xml.etree.ElementTree as ET

tree = ET.parse('file.xml')
root = tree.getroot()

for sibling in root.iter('sibling'):
    # 创建一个新的子标记
    child = ET.SubElement(root, 'child')
    
    # 将兄弟标记的属性复制到子标记中
    for key, value in sibling.attrib.items():
        child.set(key, value)
    
    # 将兄弟标记的文本内容复制到子标记中
    child.text = sibling.text
    
    # 从根标记中删除兄弟标记
    root.remove(sibling)

tree.write('new_file.xml')