+++++++++++++++++++++++
不兼容旧版的变更
~~~~~~~~~~~~~~~~~~
* **[Changed]** 当 ``errors`` 参数的值是个回调对象并且返回值是个 ``list`` 时,
会使用这个 list 来 extend 结果 list (via `147`_ . Thanks `howl-anderson`_ ) ::
更新前
>>> pinyin('你好☆☆', errors=lambda x: ['star' for _ in x])
[['nǐ'], ['hǎo'], ['star', 'star']]
更新后
>>> pinyin('你好☆☆', errors=lambda x: ['star' for _ in x])
[['nǐ'], ['hǎo'], ['star'], ['star']]
详见文档: https://pypinyin.readthedocs.io/zh_CN/develop/usage.html#handle-no-pinyin