Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/oktoberfesttv.py b/youtube_dl/extractor/oktoberfesttv.py
index 50fbbc79c12761449adc70e74a58f0442f5b9cfa..a914068f958943eddb79a992413d86bad1c343fa 100644 (file)
--- a/youtube_dl/extractor/oktoberfesttv.py
+++ b/youtube_dl/extractor/oktoberfesttv.py
@@ -13,7 +13,7 @@ class OktoberfestTVIE(InfoExtractor):
             'id': 'hb-zelt',
             'ext': 'mp4',
             'title': 're:^Live-Kamera: Hofbräuzelt [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
-            'thumbnail': 're:^https?://.*\.jpg$',
+            'thumbnail': r're:^https?://.*\.jpg$',
             'is_live': True,
         },
         'params': {