From 4519c1f43cd2d0634e85041aa8f950ddb745e285 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaime=20Marqui=CC=81nez=20Ferra=CC=81ndiz?=
 <jaime.marquinez.ferrandiz@gmail.com>
Date: Thu, 21 Jan 2016 12:43:45 +0100
Subject: [PATCH] [vimeo] 'ext' must be a string, not a tuple (fixes #8288)

There was an ',' at the end of the line.
---
 youtube_dl/extractor/vimeo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/vimeo.py b/youtube_dl/extractor/vimeo.py
index 76e681bc3..2389e7f0f 100644
--- a/youtube_dl/extractor/vimeo.py
+++ b/youtube_dl/extractor/vimeo.py
@@ -430,7 +430,7 @@ class VimeoIE(VimeoBaseInfoExtractor):
                 if download_url and not source_file.get('is_cold') and not source_file.get('is_defrosting'):
                     source_name = source_file.get('public_name', 'Original')
                     if self._is_valid_url(download_url, video_id, '%s video' % source_name):
-                        ext = source_file.get('extension', determine_ext(download_url)).lower(),
+                        ext = source_file.get('extension', determine_ext(download_url)).lower()
                         formats.append({
                             'url': download_url,
                             'ext': ext,