python 从文件夹1中删除与文件夹2中重名的文件（基于文件名，忽略后缀和大小写）即保留1文件夹中与2文件夹不重名的文件

import os
from glob import glob
import logging

# 配置日志
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

def get_filename_without_ext(filepath):
    """提取文件名（不包含路径和后缀）并转换为小写"""
    return os.path.splitext(os.path.basename(filepath))[0].lower()

def depth_first_search(path, filenames_set):
    """递归遍历文件夹，收集文件名（不包含路径和后缀）"""
    for item in os.listdir(path):
        full_path = os.path.join(path, item)
        if os.path.isdir(full_path):
            depth_first_search(full_path, filenames_set)
        else:
            filenames_set.add(get_filename_without_ext(full_path))

def delete_duplicate_files(path, filenames_to_delete):
    """递归遍历文件夹，删除与指定文件名集合匹配的文件"""
    for item in os.listdir(path):
        full_path = os.path.join(path, item)
        if os.path.isdir(full_path):
            delete_duplicate_files(full_path, filenames_to_delete)
        else:
            name_without_ext = get_filename_without_ext(full_path)
            if name_without_ext in filenames_to_delete:
                try:
                    os.remove(full_path)
                    logging.info(f"Deleted: {full_path}")
                    filenames_to_delete.remove(name_without_ext)
                except Exception as e:
                    logging.error(f"Failed to delete {full_path}: {e}")

def main():
    # 指定文件夹路径
    folder1 = os.path.abspath(r'E:\2')  # 文件夹1，将被检查并删除重名文件
    folder2 = os.path.abspath(r'E:\1')  # 文件夹2，用于比较文件名

    # 使用DFS收集文件夹2中所有文件的文件名（去除后缀）
    filenames2 = set()
    depth_first_search(folder2, filenames2)

    # 执行删除操作
    delete_duplicate_files(folder1, filenames2)

    logging.info("Removal process completed.")

if __name__ == "__main__":
    main()