This is a library for managing a filesystem tree. Test fixture is the driving use-case.
filesystem_tree is available on GitHub and on PyPI:
$ pip install filesystem_tree
We test against 64-bit Python 2.6, 2.7, 3.2, 3.3, and 3.4 on Linux: 
And we test against 32- and 64-bit Python 2.7, 3.3, and 3.4 on Windows: 
filesystem_tree is MIT-licensed.