diff -ur Python-2.7.2-old//Lib/urllib2.py Python-2.7.2-fixed//Lib/urllib2.py
--- Python-2.7.2-old//Lib/urllib2.py	2011-06-11 17:46:26.000000000 +0200
+++ Python-2.7.2-fixed//Lib/urllib2.py	2012-02-26 16:13:44.000000000 +0100
@@ -574,7 +574,7 @@
 
         # fix a possible malformed URL
         urlparts = urlparse.urlparse(newurl)
-        if not urlparts.path:
+        if not urlparts.path and urlparts.netloc:
             urlparts = list(urlparts)
             urlparts[2] = "/"
         newurl = urlparse.urlunparse(urlparts)