if request.method == 'GET':

          db_session = kiskadee_db_session()

          fetchers = db_session.query(Fetcher).all()

  @kiskadee.route('/packages')

      name = fields.Str()

      fetcher_id = fields.Int()

      versions = fields.Nested(VersionSchema, many=True)

      def make_object(self, data):

          """Serialize a Package object."""

                  Sequence('packages_id_seq', optional=True), primary_key=True)

      name = Column(Unicode(255), nullable=False)

      fetcher_id = Column(Integer, ForeignKey('fetchers.id'), nullable=False)

      versions = orm.relationship('Version', backref='packages')

      __table_args__ = (

              UniqueConstraint('name', 'fetcher_id'),

      name = Column(Unicode(255), nullable=False, unique=True)

      target = Column(Unicode(255), nullable=True)

      description = Column(UnicodeText)

  class Version(Base):