使用方法

import re


def delete_boring_characters(sentence):
    return re.sub('[0-9’!"#$%&\'()*+,-./:;<=>?@，。?★、…【】《》？“”‘’！[\\]^_`{|}~\s]+', "", sentence)


if __name__ == '__main__':
    clean_str = delete_boring_characters('[Helloworld!!!!]')
    print(clean_str) # Helloworld