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scrapy on 09/01/12


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images monkeypatch scrapy pipeline


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Monkey patch for images pipeline


 / Published in: Python
 

  1. # Small monkey patch for images pipeline to make it works with spider, which crawling Items of different nature (and some of this items doesn't have images)
  2.  
  3. from scrapy.contrib.pipeline.images import ImagesPipeline
  4.  
  5. old_item_completed = ImagesPipeline.item_completed
  6.  
  7. def new_item_completed(self, results, item, info):
  8. if 'image_urls' in item:
  9. return old_item_completed(self, results, item, info)
  10. else:
  11. return item
  12.  
  13.  
  14. if ImagesPipeline.item_completed != new_item_completed:
  15. ImagesPipeline.item_completed = new_item_completed
  16.  
  17. # Snippet imported from snippets.scrapy.org (which no longer works)
  18. # author: dchaplinsky
  19. # date : Nov 26, 2010
  20.  

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