Python3将字节类型的Unicode码转换为文字

bytes.decode('unicode_escape')

>>> s1 = 'u6ce8u6768'
>>> s1
'注杨'

>>> s2 = b'\u6ce8\uff1a'
>>> s2
b'\u6ce8\u6768'
>>> print(s2)
b'\u6ce8\u6768'
>>> s2.decode('utf-8')
'\u6ce8\u6768'
>>> s2.decode('unicode_escape')
'注杨'