Match PEP 428 API
Unless I'm missing something (unfamiliar with bitbucket as I am) this source code doesn't match the API described in PEP 428 (e.g. "/" instead of getitem)
Do you intend to update this code (and therefore the pathlib package on PyPI) to match said API?
As a py2.7 user, I'd love to use this and write my code against the future, thoroughly-reviewed API.