Forthcoming dateutil code reorganization
I know that `pandas` makes use of some of the private interfaces in `dateutil` (and I'm hoping to start adding features so that this is no longer necessary), so I thought I'd give you a heads up about a proposed changed to the organization of the `parser` module that will change the location of some of the private interfaces.

Basically `parser.py` will move to `parser/_parser.py`, and only the public parts will be imported into `parser/__init__.py`, as part of the introduction of a dedicated ISO-8601 parser. See PR dateutil/dateutil#489 for the current discussion.