From dd26ced164f834a337956ab57a014a8afd8b9131 Mon Sep 17 00:00:00 2001
From: Philipp Hagemeister <phihag@phihag.de>
Date: Wed, 22 Jan 2014 21:43:33 +0100
Subject: [PATCH] Add __len__ to PagedLists

---
 youtube_dl/utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index ed5ee222f..8fa4cb67f 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1172,6 +1172,10 @@ def __init__(self, pagefunc, pagesize):
         self._pagefunc = pagefunc
         self._pagesize = pagesize
 
+    def __len__(self):
+        # This is only useful for tests
+        return len(self.getslice())
+
     def getslice(self, start=0, end=None):
         res = []
         for pagenum in itertools.count(start // self._pagesize):