如何重命名包含某些元素的多个xml文件？

import os
import xml.etree.ElementTree as ET

def rename_xml_files(directory, target_element, new_name):
    for filename in os.listdir(directory):
        if filename.endswith(".xml"):
            xml_path = os.path.join(directory, filename)
            tree = ET.parse(xml_path)
            root = tree.getroot()
            
            # 判断是否包含目标元素
            if target_element in ET.tostring(root).decode('utf-8'):
                new_filename = filename.replace(target_element, new_name)
                new_xml_path = os.path.join(directory, new_filename)
                os.rename(xml_path, new_xml_path)
                print(f"重命名文件：{filename} -> {new_filename}")

# 示例用法
directory = "/path/to/xml/files"
target_element = "target_element"
new_name = "new_name"
rename_xml_files(directory, target_element, new_name)