html5parser.py 文件源码

def adjust_attributes(token, replacements):
    if PY3 or _utils.PY27:
        needs_adjustment = viewkeys(token['data']) & viewkeys(replacements)
    else:
        needs_adjustment = frozenset(token['data']) & frozenset(replacements)
    if needs_adjustment:
        token['data'] = OrderedDict((replacements.get(k, k), v)
                                    for k, v in token['data'].items())