code: def _get_next_page(self, soup, current_page):
          
  
          # Get the table with all the comments:
          if current_page == 1:
              table = soup.findChildren('table')[3]
          elif current_page > 1:
              table = soup.findChildren('table')[2]
  
          # the last row of the table contains the relative url of the next page
          anchor = table.findChildren(['tr'])[-1].find('a')
          if anchor and anchor.text == u'More':
              return anchor.get('href').lstrip(BASE_URL)
          else:
              return None
docs: Get the relative url of the next page (The "More" link at
          the bottom of the page)