code: def is_absolute_url(url, protocol="http"):
      
      if ":" not in url:
          return False
  
      protocol, rest = url.split(":", 1)
  
      if protocol.startswith(protocol) and rest.startswith("//"):
          return True
  
      return False
docs: Test whether `url` is absolute url (``http://domain.tld/something``) or
      relative (``../something``).
  
      Args:
          url (str): Tested string.
          protocol (str, default "http"): Protocol which will be seek at the
                   beginning of the `url`.
  
      Returns:
          bool: True if url is absolute, False if not.