From fddcfa27fab71ceb6a9df3f4edf46e94ee1da94f Mon Sep 17 00:00:00 2001
From: Michael Foord <michael@voidspace.org.uk>
Date: Mon, 14 Apr 2014 16:25:20 -0400
Subject: Closes issue 17660. You no longer need to explicitly pass create=True
 when patching builtin names.

---
 Lib/unittest/mock.py | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'Lib/unittest/mock.py')

diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index f1f65221d40..2dd4ca5271a 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -27,9 +27,13 @@ __version__ = '1.0'
 import inspect
 import pprint
 import sys
+import builtins
+from types import ModuleType
 from functools import wraps, partial
 
 
+_builtins = {name for name in dir(builtins) if not name.startswith('_')}
+
 BaseExceptions = (BaseException,)
 if 'java' in sys.platform:
     # jython
@@ -1166,6 +1170,9 @@ class _patch(object):
         else:
             local = True
 
+        if name in _builtins and isinstance(target, ModuleType):
+            self.create = True
+
         if not self.create and original is DEFAULT:
             raise AttributeError(
                 "%s does not have the attribute %r" % (target, name)
-- 
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