# `Tag`

class mnemosyne.libmnemosyne.tag.Tag(name, id=None)

  The tag name is the full name, including all levels of the hierarchy separated by ::.

  ‘id’ is used to identify this object to the external world (logs, xml files, sync, …), whereas ‘_id’ is an internal id that could be different and that can be used by the database for efficiency reasons.

  Untagged cards are given the internal tag __UNTAGGED__, to allow for a fast implementation of applying criteria.