Method _perform_external_rendering

plotly/io/_renderers.py:319–359

Perform external rendering for each ExternalRenderer specified in either the default renderer string, or in the supplied renderers_string argument. Note that this method skips any renderers that are not subclasses of ExternalRenderer. Parameters

(self, fig_dict, renderers_string=None, **kwargs)

        return bundle

    def _perform_external_rendering(self, fig_dict, renderers_string=None, **kwargs):
        """
        Perform external rendering for each ExternalRenderer specified
        in either the default renderer string, or in the supplied
        renderers_string argument.

        Note that this method skips any renderers that are not subclasses
        of ExternalRenderer.

        Parameters
        ----------
        fig_dict: dict
            Figure dictionary
        renderers_string: str or None (default None)
            Renderer string to process rather than the current default
            renderer string

        Returns
        -------
        None
        """
        if renderers_string:
            renderer_names = self._validate_coerce_renderers(renderers_string)
            renderers_list = [self[name] for name in renderer_names]

            # Activate these non-default renderers
            for renderer in renderers_list:
                if isinstance(renderer, ExternalRenderer):
                    renderer.activate()
        else:
            self._activate_pending_renderers(cls=ExternalRenderer)
            renderers_list = self._default_renderers

        for renderer in renderers_list:
            if isinstance(renderer, ExternalRenderer):
                renderer = copy(renderer)
                for k, v in kwargs.items():
                    if hasattr(renderer, k):
                        setattr(renderer, k, v)

                renderer.render(fig_dict)


# Make renderers a singleton object