diff -r a83f340368c0 Lib/tempfile.py
--- a/Lib/tempfile.py	Fri Aug 30 16:09:00 2013 +0400
+++ b/Lib/tempfile.py	Tue Sep 03 12:51:26 2013 +0400
@@ -242,6 +242,10 @@
         except OSError, e:
             if e.errno == _errno.EEXIST:
                 continue # try again
+            if _os.name == 'nt' and e.errno == _errno.EACCES:
+                # On windows, when directory with chosen name already
+                # exists, EACCES error code is returned instead of EEXIST.
+                continue
             raise
 
     raise IOError, (_errno.EEXIST, "No usable temporary file name found")