Fix "invalid escape sequences" error on Python 3.6

[youtube-dl] / youtube_dl / extractor / prosiebensat1.py

diff --git a/youtube_dl/extractor/prosiebensat1.py b/youtube_dl/extractor/prosiebensat1.py
index 30478f979f71be96a5419abb6a40cdda74af472b..03e1b1f7f3a8ee2668516c4a70ffcde070ae3716 100644 (file)
--- a/youtube_dl/extractor/prosiebensat1.py
+++ b/youtube_dl/extractor/prosiebensat1.py
@@ -394,7 +394,7 @@ class ProSiebenSat1IE(ProSiebenSat1BaseIE):
             self._PLAYLIST_ID_REGEXES, webpage, 'playlist id')
         playlist = self._parse_json(
             self._search_regex(
-                'var\s+contentResources\s*=\s*(\[.+?\]);\s*</script',
+                r'var\s+contentResources\s*=\s*(\[.+?\]);\s*</script',
                 webpage, 'playlist'),
             playlist_id)
         entries = []