There is some misunderstanding here.
Imagine a tree like this:
- user
- tester
- noob
- developer
- guru
If you want to delete user, just do shutil.rmtree('user'). This will also delete user/tester and user/tester/noob as they are inside user. However, it will also delete user/developer and user/developer/guru, as they are also inside user.
If rmtree('user/tester/noob') would delete user and tester, how do you mean user/developer would exist if user is gone?
Or do you mean something like http://docs.python.org/2/library/os.html#os.removedirs ?
It tries to remove the parent of each removed directory until it fails because the directory is not empty. So in my example tree, os.removedirs('user/tester/noob') would remove first noob, then it would try to remove tester, which is ok because it's empty, but it would stop at user and leave it alone, because it contains developer, which we do not want to delete.