This will fix #30 . However, it does raise a new concern.

The implementation as-is will not tell a user who is using string paths that their dictionary contains keys with the separator in them. Because of how the code is laid out, I felt it was too hard to make the validator be aware of whether or not the user had originally passed in a string path or a list path, and therefore I just yanked the key validation entirely. But I don't know that this was the right choice. I'm thinking maybe we should create some path object types, and pass those down to dpath.path.*, so that the low level library can know this information. Something like:

class Path:
    def __init__(self, separator='/'):
        self.__separator__ = separator
    def components(self):
        """return all path components of this path"""

class StringPath(Path):
    pass

class ListPath(Path):
    pass

... or something like that. This way the low level lib would know whether or not we should alert the user that their dict has separators in the keys. Of course, this all depends on whether or not we believe we should protect the user. Thoughts?

@calebcase , RFC?