diff -r f5f5553f219e Lib/test/support/__init__.py
--- a/Lib/test/support/__init__.py	Wed Aug 27 14:02:36 2014 +0200
+++ b/Lib/test/support/__init__.py	Wed Aug 27 14:25:52 2014 +0200
@@ -25,6 +25,7 @@ import sysconfig
 import tempfile
 import time
 import unittest
+import urllib.error
 import warnings
 
 try:
@@ -1306,6 +1307,7 @@ def transient_internet(resource_name, *,
     def filter_error(err):
         n = getattr(err, 'errno', None)
         if (isinstance(err, socket.timeout) or
+            (isinstance(err, urllib.error.URLError) and err.reason == 'ftp error: timeout()') or
             (isinstance(err, socket.gaierror) and n in gai_errnos) or
             n in captured_errnos):
             if not verbose: