old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  import os
  
  BOT_NAME = 'mishapp_ds'
  SPIDER_MODULES = ['mishapp_ds.scrape.spiders']
  NEWSPIDER_MODULE = 'mishapp_ds.scrape.spiders'
  USER_AGENT = 'mishapp_ds (+http://mishapp.com)'
  
  ITEM_PIPELINES = {
      "mishapp_ds.scrape.pipelines.MongoPipeline": 20,
  }
  
  DOWNLOADER_MIDDLEWARES = {
      "scrapy.contrib.downloadermiddleware.httpcache.HttpCacheMiddleware": 950,
  }
  
  HTTPCACHE_ENABLED = os.environ.get("HTTPCACHE_ENABLED", True)
  HTTPCACHE_EXPIRATION_SECS = 60 * 30
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  BOT_NAME = 'mishapp_ds'
  SPIDER_MODULES = ['mishapp_ds.scrape.spiders']
  NEWSPIDER_MODULE = 'mishapp_ds.scrape.spiders'
  USER_AGENT = 'mishapp_ds (+http://mishapp.com)'
  
  ITEM_PIPELINES = {
      "mishapp_ds.scrape.pipelines.MongoPipeline": 20,
  }
  
  DOWNLOADER_MIDDLEWARES = {
      "scrapy.contrib.downloadermiddleware.httpcache.HttpCacheMiddleware": 950,
  }
  
  HTTPCACHE_ENABLED = True
  HTTPCACHE_EXPIRATION_SECS = 60 * 30
  
subject: remove unused envvar in settings