if titles_dict.has_key(URL):
if title != titles_dict[URL]:
raise ValueError("titles are not identical for URL `%s': `%s' != `%s'" % (URL, title, titles_dict[URL]))
if titles_dict.has_key(URL):
if title != titles_dict[URL]:
raise ValueError("titles are not identical for URL `%s': `%s' != `%s'" % (URL, title, titles_dict[URL]))