Fix "invalid escape sequences" error on Python 3.6

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

diff --git a/youtube_dl/extractor/esri.py b/youtube_dl/extractor/esri.py
index d4205d7fbde331e3bb9fc94275da143575ebd454..e9dcaeb1dd165f86f8eac0a78a9147fa62ada1ab 100644 (file)
--- a/youtube_dl/extractor/esri.py
+++ b/youtube_dl/extractor/esri.py
@@ -22,7 +22,7 @@ class EsriVideoIE(InfoExtractor):
             'ext': 'mp4',
             'title': 'ArcGIS Online - Developing Applications',
             'description': 'Jeremy Bartley demonstrates how to develop applications with ArcGIS Online.',
-            'thumbnail': 're:^https?://.*\.jpg$',
+            'thumbnail': r're:^https?://.*\.jpg$',
             'duration': 185,
             'upload_date': '20120419',
         }