Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/mdr.py b/youtube_dl/extractor/mdr.py
index 2100583df46ab7955846f8e3b08467d13ed3440e..6e4290aadd6e0d3543d5b48d5df39577032437e2 100644 (file)
--- a/youtube_dl/extractor/mdr.py
+++ b/youtube_dl/extractor/mdr.py
@@ -72,7 +72,7 @@ class MDRIE(InfoExtractor):
 
         data_url = self._search_regex(
             r'(?:dataURL|playerXml(?:["\'])?)\s*:\s*(["\'])(?P<url>.+/(?:video|audio)-?[0-9]+-avCustom\.xml)\1',
-            webpage, 'data url', group='url').replace('\/', '/')
+            webpage, 'data url', group='url').replace(r'\/', '/')
 
         doc = self._download_xml(
             compat_urlparse.urljoin(url, data_url), video_id)