registry.py 文件源码

def unregister(self, view_class):
        self.validate(view_class)
        view_class_name = view_class.__name__
        if view_class_name not in self._registry:
            raise PopupViewNotRegistered('Popup View {0} not registered'.format(view_class_name))
        self._registry.pop(view_class_name, None)