diff --git a/src/you_get/extractor/mtv81.py b/src/you_get/extractor/mtv81.py
index e8e4dabb..ac3ed70c 100644
--- a/src/you_get/extractor/mtv81.py
+++ b/src/you_get/extractor/mtv81.py
@@ -6,28 +6,33 @@ from ..common import *
 from html.parser import unescape
 from xml.dom.minidom import parseString
 
-def mtv81_download(url, output_dir = '.', merge = True, info_only = False):
-    html=get_content(url)
-    title=unescape("|".join(match1(html,r"<title>(.*?)</title>").split("|")[:-2]))
 
-    #mgid%3Auma%3Avideo%3Amtv81.com%3A897974
-    vid=match1(html,r'getTheVideo\("(.*?)"')
-    xml=parseString(get_content("http://intl.esperanto.mtvi.com/www/xml/media/mediaGen.jhtml?uri={}&flashPlayer=LNX%2013,0,0,206&geo=CN&sid=123456".format(vid)))
+def mtv81_download(url, output_dir='.', merge=True, info_only=False):
+    html = get_content(url)
+    title = unescape(
+        "|".join(match1(html, r"<title>(.*?)</title>").split("|")[:-2]))
+
+    # mgid%3Auma%3Avideo%3Amtv81.com%3A897974
+    vid = match1(html, r'getTheVideo\("(.*?)"')
+    xml = parseString(
+        get_content("http://intl.esperanto.mtvi.com/www/xml/media/mediaGen.jhtml?uri={}&flashPlayer=LNX%2013,0,0,206&geo=CN&sid=123456".format(vid)))
+
+    url = sorted(
+        map(lambda x: x.firstChild.nodeValue, xml.getElementsByTagName("src")),
+        key=lambda x: int(match1(x, r'_(\d+?)_')))[-1]
 
-    url=sorted(map(lambda x:x.firstChild.nodeValue,xml.getElementsByTagName("src")),key=lambda x:int(match1(x,r'_(\d+?)_')))[-1] 
-    
     mediatype, ext, size = 'mp4', 'mp4', 0
     print_info(site_info, title, mediatype, size)
-    ##
+    #
     # rtmpdump  -r 'rtmpe://cp30865.edgefcs.net/ondemand/mtviestor/_!/intlod/MTVInternational/MBUS/GeoLocals/00JP/VIAMTVI/PYC/201304/7122HVAQ4/00JPVIAMTVIPYC7122HVAQ4_640x_360_1200_m30.mp4' -o "title.mp4" --swfVfy http://media.mtvnservices.com/player/prime/mediaplayerprime.1.10.8.swf
-    ##
+    #
     # because rtmpdump is unstable,may try serveral times
-    ##
+    #
     if not info_only:
         # import pdb
         # pdb.set_trace()
-        download_rtmp_url(url=url, title=title, ext=ext, params={"--swfVfy":"http://media.mtvnservices.com/player/prime/mediaplayerprime.1.10.8.swf"}, output_dir=output_dir)
-
+        download_rtmp_url(url=url, title=title, ext=ext, params={
+                          "--swfVfy": "http://media.mtvnservices.com/player/prime/mediaplayerprime.1.10.8.swf"}, output_dir=output_dir)
 
 
 site_info = "mtv81.com"