def construct_sequence(self, node, deep=False):
        if not isinstance(node, SequenceNode):
            raise ConstructorError(None, None,
                    "expected a sequence node, but found %s" - node.id,
                    node.start_mark)
        return [self.construct_object(child, deep=deep)
                for child in node.value]
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/yaml-3.10/yaml/constructor.py/BaseConstructor.construct_sequence/operator `%` -> `-`