python - 如何重命名所有文件夹？

Question

我有如下代码:

temp = os.walk(sys.argv[1])
for root, dirs, files in temp:
    for i in dirs:
        dir = os.path.join(root,i)
        os.rename(dir, dir+"!")

它几乎可以正常工作。但是一旦重命名了父文件夹，就不能重命名子文件夹了。我怎样才能避免这种情况？

Answer 1

将 topdown 设置为 False 来遍历树:

temp = os.walk(sys.argv[1], topdown=False)
for root, dirs, files in temp:
    for i in dirs:
        dir = os.path.join(root,i)
        os.rename(dir, dir+"!")

来自documentation :

If optional argument topdown is True or not specified, the triple for a directory is generated before the triples for any of its subdirectories (directories are generated top-down). If topdown is False, the triple for a directory is generated after the triples for all of its subdirectories (directories are generated bottom-up).

因此，您可以先重命名子目录，最后看到顶级目录，重命名将不再影响子目录的查找方式。