python 删除utf8范围之外的数据

报错：SyntaxError:Non-UTF-8 code starting with 'x..' in file ...

#获得没法识别的字节错误："Incorrect string value:'\xF0\xAB\x96\xAF\xE7\x9A...'，把字节错误的地方换成?
errorbytes = [b'xF0xABx96xAFxE7x9A',b'xF0xA8xA8x97xEFxBC']
for eb in errorbytes:
    data['intro'] = [x.encode('utf8', errors='replace').replace(eb, b'?').decode('utf8'
                     , errors='replace') for x in list(data['intro'])]