nicolib/module.py

def fetch_video_info (
        video_code: str,
) -> VideoInfo | None:
    bs = _create_bs_from_url (f"https://www.nicovideo.jp/watch/{ video_code }")
    if bs is None:
        return None

    try:
        title = bs.find ('title')
        if title is None:
            return None
        title = '-'.join (title.text.split ('-')[:(-1)])[:(-1)]

        tags_str: str = bs.find ('meta', attrs = { 'name': 'keywords' }).get ('content') # type: ignore
        tags = tags_str.split (',')

        description = bs.find ('meta', attrs = { 'name': 'description' }).get ('content') # type: ignore
    except Exception:
        return None

    return { 'contentId':   video_code,
             'title':       title,
             'tags':        tags,
             'description': description }