标签：style color for io line python
After an item has been scraped by a spider,it is sent to the Item Pipeline which process it through several components that are executed sequentially.
Each item pipeline component is a single python class that must implement the following method:
process_item(item,spider)
This method is called for every item pipeline component and must either return a Item object or raise a DropItem exception.Dropped items are no longer processed by further pipeline component.
参数：item(Item object) ——the item scraped
spider(Spider object)——the spider which scraped the item
【scrapy】Item Pipeline,布布扣,bubuko.com
标签：style color for io line python
原文地址：http://www.cnblogs.com/ljygoodgoodstudydaydayup/p/3840281.html
