markdown python ElementTree的tostring方法返回字节而不是字符串

Posted 2021-05-06

take care when user this method, only if the encoding of this method is unicode, it will return str else byte will be back. official document as:

<strong>Use encoding="unicode" to generate a Unicode string (otherwise, a bytestring is generated).</strong>

also find a useful website: [pymotw](https://pymotw.com/3/#)