geom.py 文件源码

def _verify_arguments(self, kwargs):
        """
        Verify arguments passed to the geom
        """
        keys = six.viewkeys
        unknown = (keys(kwargs) -
                   self.aesthetics() -                # geom aesthetics
                   keys(self.DEFAULT_PARAMS) -        # geom parameters
                   self._stat.aesthetics() -          # stat aesthetics
                   keys(self._stat.DEFAULT_PARAMS) -  # stat parameters
                   {'data', 'mapping',                # layer parameters
                    'show_legend', 'inherit_aes'})    # layer parameters
        if unknown:
            msg = ("Parameters {}, are not understood by "
                   "either the geom, stat or layer.")
            raise PlotnineError(msg.format(unknown))