递归删除python中的文件夹

我删除空的目录有问题。我有这样的代码：

I have problem in deleting the directories that are empty. I have the code like this:

for dirpath, dirnames, filenames in os.walk(dir_to_search):
    //other codes

    try:
        os.rmdir(dirpath)
    except OSError as ex:
        print(ex)

参数 dir_to_search 是我正在传递工作需要关闭的目录。该目录如下所示：

The argument dir_to_search is where I'm passing the directory where the work need to be down. That directory looks like this:

test/20/...
test/22/...
test/25/...
test/26/...

注所有上述文件夹都是空的。当我运行这个脚本时，文件夹 20 ， 25 单独删除！但是文件夹 25 和 26 不会被删除，即使它们是空文件夹。

Note that all the above folders are empty. When I run this script the folders 20,25 alone gets deleted! But the folders 25 and 26 aren't deleted, even though they are empty folders.

我得到的例外是：

[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/29'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/29/tmp'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/28'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/28/tmp'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/26'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/25'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/27'
[Errno 39] Directory not empty: '/home/python-user/shell-scripts/s3logs/test/2012/10/27/tmp'

我犯了错误。