+ next_link = self._html_search_regex(
+ r'href="(/results\?[^"]*\bsp=[^"]+)"[^>]*>\s*<span[^>]+class="[^"]*\byt-uix-button-content\b[^"]*"[^>]*>Next',
+ html_content, 'next link', default=None)
+ if next_link is None:
+ break
+ result_url = compat_urlparse.urljoin('https://www.youtube.com/', next_link)