''

def _stringify_kwopt_list_of_kovtrips(self, flag, val):

    if isinstance(val, string_types):
        return self._stringify_kwopt_string(flag, val)
    l = []
    for (k, o, v) in val:
        l.append('{k}{o}{v}'.format(k=k, o=o, v=v))
    return self._stringify_kwopt_list(flag, l)
