From b72b44318c0de52befe003c14297cae9f7a283c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Sat, 25 Jun 2016 22:32:02 +0700
Subject: [PATCH] [utils] Add strip_or_none

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

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index de66cb482..a375282f2 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1660,6 +1660,10 @@ def float_or_none(v, scale=1, invscale=1, default=None):
         return default
 
 
+def strip_or_none(v):
+    return None if v is None else v.strip()
+
+
 def parse_duration(s):
     if not isinstance(s, compat_basestring):
         return None