Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/rudo.py b/youtube_dl/extractor/rudo.py
index 9a330c1961b75f662caa457fabe231e6aa4bcb8a..3bfe934d82c9db7fe7ff8b1b8820d4c96ca0cb32 100644 (file)
--- a/youtube_dl/extractor/rudo.py
+++ b/youtube_dl/extractor/rudo.py
@@ -28,7 +28,7 @@ class RudoIE(JWPlatformBaseIE):
     @classmethod
     def _extract_url(self, webpage):
         mobj = re.search(
-            '<iframe[^>]+src=(?P<q1>[\'"])(?P<url>(?:https?:)?//rudo\.video/vod/[0-9a-zA-Z]+)(?P=q1)',
+            r'<iframe[^>]+src=(?P<q1>[\'"])(?P<url>(?:https?:)?//rudo\.video/vod/[0-9a-zA-Z]+)(?P=q1)',
             webpage)
         if mobj:
             return mobj.group('url')