diff -ruN Python-2.7-orig/Lib/urllib.py Python-2.7/Lib/urllib.py
--- Python-2.7-orig/Lib/urllib.py	2010-06-27 15:59:39.000000000 +0200
+++ Python-2.7/Lib/urllib.py	2011-08-05 17:38:10.000000000 +0200
@@ -1323,7 +1323,7 @@
     Checks the environment for a variable named no_proxy, which should
     be a list of DNS suffixes separated by commas, or '*' for all hosts.
     """
-    no_proxy = os.environ.get('no_proxy', '') or os.environ.get('NO_PROXY', '')
+    no_proxy = os.environ.get('no_proxy', '').replace(' ','') or os.environ.get('NO_PROXY', '').replace(' ','')
     # '*' is special case for always bypass
     if no_proxy == '*':
         return 1