Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/polskieradio.py b/youtube_dl/extractor/polskieradio.py
index 5ff173774a410bf0eba85069f6f1ed33cd583e7b..2ac1fcb0bc90f500696ca0dc29db9f4c911f0d27 100644 (file)
--- a/youtube_dl/extractor/polskieradio.py
+++ b/youtube_dl/extractor/polskieradio.py
@@ -36,7 +36,7 @@ class PolskieRadioIE(InfoExtractor):
                 'timestamp': 1456594200,
                 'upload_date': '20160227',
                 'duration': 2364,
-                'thumbnail': 're:^https?://static\.prsa\.pl/images/.*\.jpg$'
+                'thumbnail': r're:^https?://static\.prsa\.pl/images/.*\.jpg$'
             },
         }],
     }, {