old_contents: from comics.aggregator.crawler import BaseComicCrawler
  from comics.meta.base import BaseComicMeta
  
  class ComicMeta(BaseComicMeta):
      name = 'xkcd'
      language = 'en'
      url = 'http://www.xkcd.com/'
      start_date = '2005-05-29'
      history_capable_days = 10
      schedule = 'Mo,We,Fr'
      time_zone = -5
      rights = 'Randall Munroe, CC BY-NC 2.5'
  
  class ComicCrawler(BaseComicCrawler):
      def crawl(self):
          feed = self.parse_feed('http://www.xkcd.com/rss.xml')
          for entry in feed.for_date(self.pub_date):
              self.url = entry.summary.src('img')
              self.title = entry.title
              self.text = entry.summary.alt('img')
  
new_contents: from comics.aggregator.crawler import BaseComicCrawler
  from comics.meta.base import BaseComicMeta
  
  class ComicMeta(BaseComicMeta):
      name = 'xkcd'
      language = 'en'
      url = 'http://www.xkcd.com/'
      start_date = '2005-05-29'
      history_capable_days = 10
      schedule = 'Mo,We,Fr'
      time_zone = -5
      rights = 'Randall Munroe, CC BY-NC 2.5'
  
  class ComicCrawler(BaseComicCrawler):
      def crawl(self):
          feed = self.parse_feed('http://www.xkcd.com/rss.xml')
          for entry in feed.for_date(self.pub_date):
              self.url = entry.summary.src('img[src*="/comics/"]')
              self.title = entry.title
              self.text = entry.summary.alt('img[src*="/comics/"]')
  
subject: Update xkcd crawler to only match comic feed entries