From c45a6caa95e9cea09b84417cfd13ff066986c695 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Fri, 18 Jul 2014 21:37:40 +0700
Subject: [PATCH] [utils] Add None check in str_to_int

---
 youtube_dl/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 64a9618ca..919603c62 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1194,6 +1194,8 @@ def format_bytes(bytes):
 
 
 def str_to_int(int_str):
+    if int_str is None:
+        return None
     int_str = re.sub(r'[,\.]', u'', int_str)
     return int(int_str)