[soundcloud] Fix non-secret playlists

youtube_dl/extractor/soundcloud.py

@@ -338,11 +338,9 @@ class SoundcloudUserIE(SoundcloudIE):
 
 
 class SoundcloudPlaylistIE(SoundcloudIE):
-    _VALID_URL = r'https?://api\.soundcloud\.com/playlists/(?P<id>[0-9]+)(?:/?\?secret_token=(?P<token>[^&]+?))$'
+    _VALID_URL = r'https?://api\.soundcloud\.com/playlists/(?P<id>[0-9]+)(?:/?\?secret_token=(?P<token>[^&]+?))?$'
     IE_NAME = 'soundcloud:playlist'
-    _TESTS = [
+    _TESTS = [{
-
-        {
         'url': 'http://api.soundcloud.com/playlists/4110309',
         'info_dict': {
             'id': '4110309',
@@ -350,8 +348,7 @@ class SoundcloudPlaylistIE(SoundcloudIE):
             'description': 're:.*?TILT Brass - Bowery Poetry Club',
         },
         'playlist_count': 6,
-        }
+    }]
-    ]
 
     def _real_extract(self, url):
         mobj = re.match(self._VALID_URL, url)