自用小脚本：对从ch9下载的字幕文件进行自动化整理，去除无用行方便导入Aegisub

CleanSubtitleFile.py

import os, glob

keys = [
    "WEBVTT",
    "-->"
]

def hasKey(array, line):
    for item in array:
        if item in line:
            return True
    return False

for files in glob.glob(os.path.abspath(os.curdir)+'\\*.txt'):
    if not ".Cleaned.txt" in files:
        with open(files, 'r') as f:
            with open(files+".Cleaned.txt", 'w') as g:
                for line in f.readlines():
                    if not hasKey(keys, line):
                        g.write(line)
        os.remove(files)