python 过滤中文、英文特殊符号
python2：allname = re.sub("[\s+\.\!\/_,$%^*(+\"\')]+|[+——()?【】“”！，。？、~@#￥%……&*（）]+", "",allname)
python3：re.sub("[\s+\.\!\/_,$%^*(+\"\']+|[+——！，。？、~@#￥%……&*（）]+".encode('utf-8').decode('utf-8'), "".encode('utf-8').decode('utf-8'),line)
参考：/nlite827109223/article/details/62237733?utm_source=distribute.pc_relevant.none-task
