utils.py 文件源码

def __call__(self, request, node, model, viewName):
        """Get a name from my namespace.
        """
        from twisted.web.woven import widgets
        if viewName == "None":
            return widgets.DefaultWidget(model)

        vc = getattr(self.namespace, viewName, None)
        # don't call modules and random crap in the namespace, only widgets
        if vc and isinstance(vc, (type, ClassType)) and issubclass(vc, widgets.Widget):
            return vc(model)