a python regex to grab every japanese word from an HTML file

regexJP.py

import re

with open(rootdir + "something in japanese.html", encoding='utf-8', errors='ignore') as reader:
    for line in reader:
        words = re.findall(r"[一-龯ぁ-んァ-ン！：／・（）ー]*", line)
        for word in words:
            if word:
                print(word)