code: def parse(self, uri, defaults=None):
          
          return tuple([self.scheme_of(uri)] + list(self.parser_for(uri)(defaults).parse(uri)))
docs: Parse the URI.
  
          uri is the uri to parse.
          defaults is a scheme-dependent list of values to use if there
          is no value for that part in the supplied URI.
  
          The return value is a tuple of scheme-dependent length.