Unfortunately , if there s an error in the url it will lead to the aggregator seeing a new item , and keeping the erroneous item as well 但是很不幸,如果url中有一个错误,则会被聚集器认为是一个新的条目,而且这个错误条目不会被发现。
The demo first makes the aggregator load the example rss files , both of which reference a recent article by mark pilgrim on xml . com 该演示首先使聚集器装入这两个示例rss文件,它们都引用了mark pilgrim最近在xml . com上发表的一篇文章。
If the aggregator must exercise the grid middleware , the programmer should isolate the middleware - specific code using the techniques described in 如果聚合器必须运行网格中间件,那么程序员应该将与中间件相关的代码隔离开,可以采用上面
Its value is a date , indicating when the item was published . if it ' s a date in the future , aggregators may choose to not display the item until that date 它的值是一个表示项目发布的日期。如果它是个未来的时间,聚合器可以选择直到那天才显示该日期。
You then must amend the main aggregator , chumpologica . py , to set the output and data directories at the top of the script to the ones you ll be using 您必须修改主聚集器chumpologica . py ,在脚本的开始处设置您所使用的输出目录和数据目录。然后只要执行