Python对比两个文件夹中文件并筛选出差异文件

import os
import shutil
def diff_file(path1, path2):
    path = '/Users/XXXXX/Desktop/test3'
    fileName1 = set([_ for _ in os.listdir(path1)])
    fileName2 = set([_.replace('.htm', '.pdf') for _ in os.listdir(path2) if '.htm' in _])
    diffs = fileName1.difference(fileName2)    # fileName1对比fileName2，fileName1中多出来的文件；注意，如果fileName2里有fileName1中没有的文件，也不会筛选出来
    filePath = [os.path.join(path, i) for i in diffs]
    if not os.path.exists(path):
        os.mkdir(path)
    for file in filePath:
        fileName = file.split('/')[-1]
        shutil.copy(os.path.join(path1, fileName), '/'.join(file.split('/')[:-1]))
        print('复制文件--', fileName)

if __name__ == '__main__':
    # 参照路径
    path1 = '/Users/XXXXX/Desktop/test1'
    # 对比路径
    path2 = '/Users/XXXXX/Desktop/test2'
    diff_file(path1, path2)