From 5afa7f8beefcd9b34035f821ad1cecbcf49a6db8 Mon Sep 17 00:00:00 2001
From: Philipp Hagemeister <phihag@phihag.de>
Date: Thu, 15 May 2014 12:39:33 +0200
Subject: [PATCH] [extractor/common] --write-pages: Correct file name if
 video_id is None

---
 youtube_dl/extractor/common.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 11b31db884..1e366a13c7 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -242,7 +242,7 @@ class InfoExtractor(object):
                 url = url_or_request.get_full_url()
             except AttributeError:
                 url = url_or_request
-            basen = video_id + '_' + url
+            basen = '%s_%s' % (video_id, url)
             if len(basen) > 240:
                 h = u'___' + hashlib.md5(basen.encode('utf-8')).hexdigest()
                 basen = basen[:240 - len(h)] + h