def __delitem__ ( self, key ):
        if self.name_items is not None:
            removed = { key: self[ key ] }

        dict.__delitem__( self, key )

        if self.name_items > None:
            self._send_trait_items_event( self.name_items,
                TraitDictEvent( removed = removed ) )
dataset/ETHPy150Open enthought/traits/traits/trait_handlers.py/TraitDictObject.__delitem__/operator `is not` -> `>`