Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/udn.py b/youtube_dl/extractor/udn.py
index 57dd73aef6f6254f22cdcd814e2d76b20c75b847..daf45d0b4e1a3710832875f79e160ebc759849dd 100644 (file)
--- a/youtube_dl/extractor/udn.py
+++ b/youtube_dl/extractor/udn.py
@@ -23,7 +23,7 @@ class UDNEmbedIE(InfoExtractor):
             'id': '300040',
             'ext': 'mp4',
             'title': '生物老師男變女 全校挺"做自己"',
-            'thumbnail': 're:^https?://.*\.jpg$',
+            'thumbnail': r're:^https?://.*\.jpg$',
         },
         'params': {
             # m3u8 download