import re YOUTUBE_REGEX = re.compile( r"(https?://)?(www\.)?(youtube|youtu|youtube-nocookie)\.(com|be)/.+", re.IGNORECASE ) TORRENT_REGEX = re.compile( r"^(?:(magnet:\?xt=urn:btih:(?:[a-zA-Z0-9]{32}|[a-zA-Z0-9]{40}).*)|(https?://.*\.torrent))$", re.IGNORECASE, )