Default values for Item Fields()

[crawler]

What is the easiest way to set default values for Item Fields()?

[Steven Almeroth]

See this thread from december: https://groups.google.com/d/topic/scrapy-users/X963mAiKNco/discussion

"The reason why field defaults was removed from Scrapy is because there were many ways to implement default field values depending on the project with slightly different semantics..."

[Pablo Hoffman]

A simple (and common) way to do it is to write an item pipeline to set the default values.

For example:

class DefaultValuesPipeline(object):

    def process_item(self, item, spider):
        item.setdefault('field1', 'value1')
        item.setdefault('field2', 'value2')
        # ...
        return item

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