Scrapy: Follow link to get additional Item data?

Question

I don\'t have a specific code issue I\'m just not sure how to approach the following problem logistically with the Scrapy framework:

The structure of the data I want

Answer 1

You can also use Python functools.partial to pass an item or any other serializable data via additional arguments to the next Scrapy callback.

Something like:

import functools

# Inside your Spider class:

def parse(self, response):
  # ...
  # Process the first response here, populate item and next_url.
  # ...
  callback = functools.partial(self.parse_next, item, someotherarg)
  return Request(next_url, callback=callback)

def parse_next(self, item, someotherarg, response):
  # ...
  # Process the second response here.
  # ...
  return item