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added note about RFPDupeFilter.request_fingerprint overriding to the settings documentation

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Alexander Chekunkov 2014-02-15 17:48:32 +02:00
parent 6e4c77c684
commit baaa077725
1 changed files with 3 additions and 1 deletions
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docs/topics/settings.rst
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@ -408,7 +408,9 @@ Default: ``'scrapy.dupefilter.RFPDupeFilter'``
The class used to detect and filter duplicate requests.
The default (``RFPDupeFilter``) filters based on request fingerprint using
the ``scrapy.utils.request.request_fingerprint`` function.
the ``scrapy.utils.request.request_fingerprint`` function. In order to change
the way duplicates are checked you could subclass ``RFPDupeFilter`` and
override its ``request_fingerprint`` method.
.. setting:: DUPEFILTER_DEBUG