[youtube] Fix a TypeError caused by 4da31bd566

9 years ago · 0c8662d2b6
1 changed files with 1 additions and 1 deletions
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@ -816,7 +816,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                        'filesize': filesize,
                        'fps': int_or_none(r.attrib.get('frameRate')),
                    }
-                    if len(segment_list):
+                    if segment_list is not None:
                        f.update({
                            'initialization_url': segment_list.find('{urn:mpeg:DASH:schema:MPD:2011}Initialization').attrib['sourceURL'],
                            'segment_urls': [segment.attrib.get('media') for segment in segment_list.findall('{urn:mpeg:DASH:schema:MPD:2011}SegmentURL')],