For most of the data sets, we rely on the database interfaces from Bob_.
Particularly, all databases that are derived from the :py:class:`bob.bio.db.BioDatabase` (click :ref:`here <verification_databases>` for a list of implemented databases) are supported by a special derivation of the databases from above.
Particularly, all databases that are derived from the :py:class:`bob.bio.base.database.BioDatabase` (click :ref:`here <verification_databases>` for a list of implemented databases) are supported by a special derivation of the databases from above.
For these databases, the special :py:class:`bob.bio.base.database.DatabaseBob` interface is provided, which takes the Bob_ database as parameter.
Several such databases are defined in the according packages, i.e., :ref:`bob.bio.spear <bob.bio.spear>`, :ref:`bob.bio.face <bob.bio.face>` and :ref:`bob.bio.video <bob.bio.video>`.
For Bob_'s ZT-norm databases, we provide the :py:class:`bob.bio.base.database.DatabaseBobZT` interface.
Additionally, a generic database interface, which is derived from :py:class:`bob.bio.base.database.DatabaseBobZT`, is the :py:class:`bob.bio.base.database.DatabaseFileList`.
This database interfaces with the :py:class:`bob.db.verification.filelist.Database`, which is a generic database based on file lists, implementing the :py:class:`bob.bio.db.BioDatabase` interface.
This database interfaces with the :py:class:`bob.db.verification.filelist.Database`, which is a generic database based on file lists, implementing the :py:class:`bob.bio.base.database.BioDatabase` interface.