Pick last one in a list of archive pages.

def starter(cls):
        """Pick last one in a list of archive pages."""
        archive = cls.url + 'archive.html'
        data = getPageContent(archive, cls.session)
        search = compile(tagre("a", "href", r"(\d\d\d\d-\d\d.html)"))
        archivepages = search.findall(data)
        return cls.url + archivepages[-1]