Improve some _VALID_URLs

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

diff --git a/youtube_dl/extractor/niconico.py b/youtube_dl/extractor/niconico.py
index dd75a48afcc9dfa4a728c600c836741785056770..6eaaa8416c7f4fb7e1c738fe2a6c13da6c66c503 100644 (file)
--- a/youtube_dl/extractor/niconico.py
+++ b/youtube_dl/extractor/niconico.py
@@ -252,7 +252,7 @@ class NiconicoIE(InfoExtractor):
 
 
 class NiconicoPlaylistIE(InfoExtractor):
-    _VALID_URL = r'https?://www\.nicovideo\.jp/mylist/(?P<id>\d+)'
+    _VALID_URL = r'https?://(?:www\.)?nicovideo\.jp/mylist/(?P<id>\d+)'
 
     _TEST = {
         'url': 'http://www.nicovideo.jp/mylist/27411728',