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-rw-r--r--youtube_dl/extractor/twitter.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/youtube_dl/extractor/twitter.py b/youtube_dl/extractor/twitter.py
index ed495f297..cfa7a7326 100644
--- a/youtube_dl/extractor/twitter.py
+++ b/youtube_dl/extractor/twitter.py
@@ -19,6 +19,7 @@ from ..utils import (
strip_or_none,
unified_timestamp,
update_url_query,
+ url_or_none,
xpath_text,
)
@@ -52,6 +53,9 @@ class TwitterBaseIE(InfoExtractor):
return [f]
def _extract_formats_from_vmap_url(self, vmap_url, video_id):
+ vmap_url = url_or_none(vmap_url)
+ if not vmap_url:
+ return []
vmap_data = self._download_xml(vmap_url, video_id)
formats = []
urls = []