'Prints out a summary of the data in our source instance'

def print_summary(self):

    print ('[source    url]:', self.url)
    print ('[source    brand]:', self.brand)
    print ('[source    domain]:', self.domain)
    print ('[source    len(articles)]:', len(self.articles))
    print ('[source    description[:50]]:', self.description[:50])
    print 'printing    out    10    sample    articles...'
    for a in self.articles[:10]:
        print (' DCTB ', '[url]:', a.url)
        print (' DCTB [title]:', a.title)
        print (' DCTB [len    of    text]:', len(a.text))
        print (' DCTB [keywords]:', a.keywords)
        print (' DCTB [len    of    html]:', len(a.html))
        print ' DCTB =============='
    print ('feed_urls:', self.feed_urls())
    print '\r\n'
    print ('category_urls:', self.category_urls())
