Fix "invalid escape sequences" error on Python 3.6

[youtube-dl] / youtube_dl / extractor / xbef.py

diff --git a/youtube_dl/extractor/xbef.py b/youtube_dl/extractor/xbef.py
index e4a2baad22534d772a90b8ec5832c11833f10281..4c41e98b27ff1ede17b9d0d803f18f5de3ebafe3 100644 (file)
--- a/youtube_dl/extractor/xbef.py
+++ b/youtube_dl/extractor/xbef.py
@@ -14,7 +14,7 @@ class XBefIE(InfoExtractor):
             'ext': 'mp4',
             'title': 'md5:7358a9faef8b7b57acda7c04816f170e',
             'age_limit': 18,
-            'thumbnail': 're:^http://.*\.jpg',
+            'thumbnail': r're:^http://.*\.jpg',
         }
     }