python实现将文件夹下面的不是以py文件结尾的文件都过滤掉

dir_in = os.path.join(os.path.dirname(__file__), r"oldApp")

    dir_in = unicode(dir_in, r"GBK")

    dir_out = os.path.join(os.path.dirname(__file__), r"newApp")

    dir_out = unicode(dir_out, r"GBK")

    rediret_file_path_list = []

    soure_file_path_out_list = []

    for root, dirs, files in os.walk(dir_in):

        for file in files:

            # print('root=%s' %root)

            # print('1111 file=%s' %file)

            # filter file extend name not .py

            filter_file = file.split('.')

            if filter_file[1] != 'py':

                continue

            soure_file_path_out = os.path.join(root, file)

            # print(soure_file_path_out)

            soure_file_path_out_list.append(soure_file_path_out)

            root_new = root.replace(r'oldApp', r'newApp')

            if not os.path.exists(root_new):

                os.makedirs(root_new)

            rediret_file_path = os.path.join(root_new, file)

            # print('rediret_file_path=%s' %rediret_file_path)

            rediret_file_path_list.append(rediret_file_path)