socket timeout for feedparser

.patch

--- feedparser-5.2.1/feedparser/feedparser.py	2015-07-23 22:00:04.000000000 -0700
+++ feedparser.py.new	2017-02-14 15:31:11.000000000 -0800
@@ -2910,7 +2910,10 @@
         return url
 
 def _build_urllib2_request(url, agent, etag, modified, referrer, auth, request_headers):
+    _save_socket_timeout = socket.getdefaulttimeout()
+    socket.setdefaulttimeout(2.0)
     request = urllib2.Request(url)
+    socket.setdefaulttimeout(_save_socket_timeout)
     request.add_header('User-Agent', agent)
     if etag:
         request.add_header('If-None-Match', etag)