Python rest_framework.renderers 模块，BrowsableAPIRenderer() 实例源码

def __init__(self, *args, **kwargs):
        super(SchemaView, self).__init__(*args, **kwargs)
        if self.renderer_classes is None:
            if renderers.BrowsableAPIRenderer in api_settings.DEFAULT_RENDERER_CLASSES:
                self.renderer_classes = [
                    renderers.CoreJSONRenderer,
                    renderers.BrowsableAPIRenderer,
                ]
            else:
                self.renderer_classes = [renderers.CoreJSONRenderer]