code: def _list_handle(self, listmatch):
          
          out = []
          name = listmatch.group(1)
          args = listmatch.group(2)
          for arg in self._list_members.findall(args):
              out.append(self._unquote(arg))
          return name, out
docs: Take apart a ``keyword=list('val, 'val')`` type string.