title: scrapy list of requests delayed
body: <p>I need to scrape a list of web pages 10 times at 5 minute intervals.
  This is to collect URLs for later scraping.  Another way to look at it is</p>
  
  <pre><code>url_list = []
  for i in 1:10 {
     url_list += scrape request
     url_list += scrape request
     url_list += scrape request
     sleep 5 min
  }
  for site in url_list
      scrape site
  </code></pre>
  
  <p>How can I add a delay between the sets, but no delay between the scraping requests?</p>
  
  <p>How can I achieve this?</p>
  
  <p>Thanks</p>