diff -r 5e98a50e0f55 Lib/tempfile.py
--- a/Lib/tempfile.py	Thu May 15 14:37:42 2014 +0300
+++ b/Lib/tempfile.py	Fri May 16 11:12:46 2014 +0200
@@ -33,6 +33,7 @@ import io as _io
 import os as _os
 import shutil as _shutil
 import errno as _errno
+import sys as _sys
 from random import Random as _Random
 import weakref as _weakref
 
@@ -55,6 +56,14 @@ if hasattr(_os, 'TMP_MAX'):
 else:
     TMP_MAX = 10000
 
+if hasattr(_os, 'O_TMPFILE'):
+    _O_TMPFILE = _os.O_TMPFILE
+elif _sys.platform == 'linux':
+    __O_TMPFILE = 0o20000000
+    _O_TMPFILE = (__O_TMPFILE | _os.O_DIRECTORY)
+else:
+    _O_TMPFILE = None
+
 # Although it does not have an underscore for historical reasons, this
 # variable is an internal implementation detail (see issue 10354).
 template = "tmp"
@@ -493,15 +502,24 @@ else:
             dir = gettempdir()
 
         flags = _bin_openflags
-
-        (fd, name) = _mkstemp_inner(dir, prefix, suffix, flags)
-        try:
-            _os.unlink(name)
-            return _io.open(fd, mode, buffering=buffering,
-                            newline=newline, encoding=encoding)
-        except:
-            _os.close(fd)
-            raise
+        if _O_TMPFILE is not None:
+            flags = (flags | _O_TMPFILE) & ~_os.O_CREAT
+            fd = _os.open(dir, flags, 0o600)
+            try:
+                return _io.open(fd, mode, buffering=buffering,
+                                newline=newline, encoding=encoding)
+            except:
+                _os.close(fd)
+                raise
+        else:
+            (fd, name) = _mkstemp_inner(dir, prefix, suffix, flags)
+            try:
+                _os.unlink(name)
+                return _io.open(fd, mode, buffering=buffering,
+                                newline=newline, encoding=encoding)
+            except:
+                _os.close(fd)
+                raise
 
 class SpooledTemporaryFile:
     """Temporary file wrapper, specialized to switch from BytesIO