type_ = source.get('type')
ext = determine_ext(file_)
format_id = source.get('label') or ext
- if all(_ == 'm3u8' for _ in (type_, ext)):
+ if all(v == 'm3u8' for v in (type_, ext)):
formats.extend(self._extract_m3u8_formats(
file_, video_id, 'mp4', m3u8_id='hls'))
else: