Python:如何将文件名更改为小写，而不是扩展名

import os

def rename_to_lowercase(directory):
    # 遍历目录中的所有文件
    for filename in os.listdir(directory):
        # 分离文件名和扩展名
        name, ext = os.path.splitext(filename)
        # 如果文件名不是全小写，则进行重命名
        if name.lower() != name:
            new_filename = name.lower() + ext
            old_file_path = os.path.join(directory, filename)
            new_file_path = os.path.join(directory, new_filename)
            # 重命名文件
            os.rename(old_file_path, new_file_path)
            print(f'Renamed: {old_file_path} -> {new_file_path}')

# 使用示例
directory_path = '/path/to/your/directory'
rename_to_lowercase(directory_path)